Journal of Ophthalmology http://www.hindawi.com The latest articles from Hindawi Publishing Corporation © 2015 , Hindawi Publishing Corporation . All rights reserved. Changes in Central Macular Thickness following Single Session Multispot Panretinal Photocoagulation Wed, 28 Jan 2015 11:36:13 +0000 http://www.hindawi.com/journals/joph/2015/529529/ Purpose. To determine changes in central subfield (CSF) macular thickness and best corrected visual acuity (BCVA) following single session, multispot panretinal photocoagulation (PRP). Methods. Forty eyes of 33 patients with newly diagnosed proliferative diabetic retinopathy were treated with single session, 20-millisecond, multispot PRP. Changes in central macular thickness and BCVA at 4- and 12-week follow-up were compared to baseline measurements. Results. Each eye received a mean (SD) of 2,750 (686.7) laser spots. At 4-week follow-up, there was a statistically significant 24.0 μm increase in mean CSF thickness (), with a 17.4 μm increase from baseline at 12-week follow-up (). Mean logMAR BCVA increased by 0.05 logMAR units () at 4-week follow-up. At 12-week follow-up, BCVA had almost returned to normal with only an increase of 0.02 logMAR units compared to baseline (). Macular edema occurred in 2 eyes (5%) at 12-week follow-up. Conclusions. Macular thickening occurs following single session, 20-millisecond, multispot PRP, with a corresponding, mild change in BCVA. However, the incidence of macular edema appears to be low in these patients. Single session, 20-millisecond, multispot PRP appears to be a safe treatment for patients with proliferative diabetic retinopathy. Nawat Watanachai, Janejit Choovuthayakorn, Direk Patikulsila, and Nimitr Ittipunkul Copyright © 2015 Nawat Watanachai et al. All rights reserved. Comparison of the Changes in Corneal Endothelial Cells after Pars Plana and Anterior Chamber Ahmed Valve Implant Wed, 28 Jan 2015 08:56:11 +0000 http://www.hindawi.com/journals/joph/2015/486832/ Purpose. To compare the changes in corneal endothelial cells after pars plana Ahmed glaucoma valve (AGV) implantation with those after the anterior chamber AGV implantation for refractory glaucoma. Methods. The medical records of 18 eyes with pars plana implantation of AGV (ppAGV) were reviewed retrospectively and were compared with 18 eyes with the anterior chamber AGV (acAGV) implant. The preoperative and postoperative endothelial cells, intraocular pressure (IOP), and postoperative complications during the follow-up in both groups were compared. Results. The average follow-up was 18 months. The postoperative endothelial cells in the ppAGV and acAGV groups were 2044 ± 303 and 1904 ± 324, respectively . The average percentage decrease in the endothelial cells in the ppAGV and acAGV groups at 18 months was 12.5% and 18.4%, respectively, and showed significant difference between the 2 groups . No difference in IOP control and the number of postoperative glaucoma medications was observed between the 2 groups. Conclusions. Endothelial cell damage in the ppAGV group for refractory glaucoma appeared to be lower than that in the acAGV group. Therefore, pars plana implantation of AGV may be preferred as it may have lower level of endothelial cell damage while maintaining similar level of IOP control. Ji Won Seo, Jong Yeon Lee, Dong Heun Nam, and Dae Yeong Lee Copyright © 2015 Ji Won Seo et al. All rights reserved. Efficacy and Safety of Corneal Transplantation Using Corneas from Foreign Donors versus Domestic Donors: A Prospective, Randomized, Controlled Trial Wed, 28 Jan 2015 06:38:47 +0000 http://www.hindawi.com/journals/joph/2015/178289/ Purpose. To assess the efficacy and safety of corneal transplantation using corneas from foreign donors. Methods. One hundred and eight patients needing therapeutic penetrating keratoplasty were randomly divided into 2 groups (54 cases/group): foreign group using foreign donor corneas and domestic group using domestic donor corneas. Clinical outcome and incidence of postoperative complications were compared between groups. Results. No significant difference with respect to the therapeutic outcome and postoperative Best Corrected Visual Acuity (BCVA) and neovascularization by final follow-up was observed between the two groups. The graft thickness in the foreign group was statistically higher than the domestic group at 1 month postoperatively, but not at 3, 6, and 12 months postoperatively. Corneal endothelial cell density in the domestic group was statistically higher than in the foreign group at 3, 6, and 12 months postoperatively. Corneal epithelial abnormalities in the foreign group were significantly higher than that in domestic group. The primary graft failure, incidence of graft survival, and postoperative complications such as immunologic rejection, graft infection, and secondary glaucoma were not significantly different between the two groups. Conclusions. Corneal transplantations using foreign donor corneas are as effective and safe as those using domestic donor corneas. Yingxin Chen, Congling Liao, Minghong Gao, Michael Wellington Belin, Mingwu Wang, Hai Yu, and Jing Yu Copyright © 2015 Yingxin Chen et al. All rights reserved. An Updated Meta-Analysis: Risk Conferred by Glutathione S-Transferases (GSTM1 and GSTT1) Polymorphisms to Age-Related Cataract Tue, 27 Jan 2015 12:09:19 +0000 http://www.hindawi.com/journals/joph/2015/103950/ Purpose. To study the effects of glutathione S-transferase M1 (GSTM1) and T1 (GSTT1) polymorphisms on age-related cataract (ARC). Methods. After a systematic literature search, all relevant studies evaluating the association between GSTs polymorphisms and ARC were included. Results. Fifteen studies on GSTM1 and nine studies on GSTT1 were included in this meta-analysis. In the pooled analysis, a significant association between null genotype of GSTT1 and ARC was found (OR = 1.229, 95% CI = 1.057–1.429, and ). In subgroup analysis, the association between cortical cataract (CC) and GSTM1 null genotype was statistically significant (OR = 0.713, 95% CI = 0.598–0.850, and ). In addition, GSTM1 null genotype was significantly associated with ARC causing risk to individuals working indoors and not individuals working outdoors. The association between GSTT1 null genotype and risk of ARC was statistically significant in Asians (OR = 1.442, 95% CI = 1.137–1.830, and ) but not in Caucasians. Conclusions. GSTM1 positive genotype is associated with increased risk of CC and loses the protective role in persons who work outdoors. Considering the ethnic variation, GSTT1 null genotype is found to be associated with increased risk of ARC in Asians but not in Caucasians. Rong-feng Liao, Min-jie Ye, Cai-yuan Liu, and Dong-qing Ye Copyright © 2015 Rong-feng Liao et al. All rights reserved. Early Results of Slanted Recession of the Lateral Rectus Muscle for Intermittent Exotropia with Convergence Insufficiency Mon, 26 Jan 2015 11:10:31 +0000 http://www.hindawi.com/journals/joph/2015/380467/ The aim of this study was to evaluate the efficacy of slanted recession of the lateral rectus muscle for intermittent exotropia with convergence insufficiency. This prospective study included 31 patients who underwent slanted lateral rectus recession for intermittent exotropia with convergence insufficiency between June 2010 and June 2012. Following parameters were recorded and analyzed: patient sex, age, preoperative and postoperative near and distance ocular alignment, and changes in stereopsis. The mean age of the patients was 9.2 years. The preoperative mean deviation angle was 32.4 PD at distance and 43.4 PD at near. After 6 months, slanted lateral rectus recession reduced the deviation angles to 2 PD at distance and 3.4 PD at near. In addition, the mean difference between distance and near deviation angles was significantly reduced from 11 PD to 1.4 PD at 6 months postoperatively. Slanted lateral rectus recession for intermittent exotropia with convergence insufficiency in children successfully reduced the distance and near exodeviations and the near-distance difference without increasing the risk of long-term postoperative esotropia or diplopia. Bo Young Chun and Kyung Min Kang Copyright © 2015 Bo Young Chun and Kyung Min Kang. All rights reserved. Alterations Induced by Bangerter Filters on the Visual Field: A Frequency Doubling Technology and Standard Automated Perimetry Study Tue, 20 Jan 2015 11:29:56 +0000 http://www.hindawi.com/journals/joph/2015/909848/ Purpose. To investigate the effects of Bangerter filters on the visual field in healthy and in amblyopic patients. Materials and Methods. Fifteen normal adults and fifteen anisometropic amblyopia patients were analysed with standard automated perimetry (SAP) and frequency doubling technology (FDT) at baseline and with filters 0.8 and 0.1. Results. With 0.1 filter in SAP there was an increase of MD compared with controls (−10.24 ± 1.09 dB) in either the amblyopic (−11.34 ± 2.06 dB; ) or sound eyes (−11.34 ± 1.66 dB; ). With filters 0.8 the PSD was increased in the amblyopic eyes (2.09 ± 0.70 dB; ) and in the sound eyes (1.92 ± 0.29 dB; ) compared with controls. The FDT-PSD values in the control group were increased with the interposition of the filters compared to baseline (0.8; and 0.1; ). We did not find significant differences of the baseline PSD between amblyopic eyes (3.80 ± 2.21 dB) and the sound eyes (4.33 ± 1.31 dB) and when comparing the filters 0.8 (4.55 ± 1.50 versus 4.53 ± 1.76 dB) and 0.1 (4.66 ± 1.80 versus 5.10 ± 2.04 dB). Conclusions. The use of Bangerter filters leads to a reduction of the functionality of the magno- and parvocellular pathway. Costantino Schiavi, Filippo Tassi, Alessandro Finzi, and Mauro Cellini Copyright © 2015 Costantino Schiavi et al. All rights reserved. A Comparison of Clinical Features between Community-Associated and Healthcare-Associated Methicillin-Resistant Staphylococcus aureus Keratitis Mon, 12 Jan 2015 09:29:16 +0000 http://www.hindawi.com/journals/joph/2015/923941/ Purpose. To compare the clinical features of community-associated (CA) and healthcare-associated (HA) methicillin-resistant Staphylococcus aureus (MRSA) keratitis. Methods. Patients presenting with culture-proven MRSA keratitis between January 1, 2006, and December 31, 2010, at Chang Gung Memorial Hospital, Taiwan, were included in this study. The patients’ demographic and clinical information were reviewed retrospectively. Antibiotic susceptibility was verified using the disk diffusion method. Results. Information on 26 patients with MRSA keratitis was collected, including 12 cases of CA-MRSA and 14 cases of HA-MRSA. All MRSA isolates were susceptible to vancomycin; the only difference in drug susceptibility was that CA-MRSA isolates were more susceptible to trimethoprim/sulfamethoxazole than HA-MRSA . The most common risk factor for MRSA keratitis was ocular surface disease. No significant differences were observed between the 2 groups in terms of clinical features, treatments, and visual outcomes. Conclusion. In Taiwan, CA-MRSA rivals HA-MRSA as a critical cause of MRSA keratitis. Furthermore, CA-MRSA isolates are multidrug resistant. CA-MRSA and HA-MRSA keratitis are clinically indistinguishable, although larger studies are warranted to further evaluate this association. Ching-Hsi Hsiao, Sherine Jue Ong, Chih-Chun Chuang, David H. K. Ma, and Yhu-Chering Huang Copyright © 2015 Ching-Hsi Hsiao et al. All rights reserved. A Novel Review of the Evidence Linking Myopia and High Intelligence Sun, 11 Jan 2015 11:19:42 +0000 http://www.hindawi.com/journals/joph/2015/271746/ The association between myopia and high intelligence has been the subject of much vexed debate in academic circles, particularly over the last two decades. This debate has risen from the observation that, over recent centuries, the prevalence of myopia amongst most populations has coincided with a marked increase in the average level of intelligence in these populations. The relationship between myopia and intelligence and theories surrounding this association is examined by the authors. Additionally, the various factors that confound the myopia and high intelligence debate, such as genetics, educational levels, ethnicity, and environmental factors were also explored by the authors. Whilst most studies found a positive correlation reaching statistical significance between myopia and high intelligence compared to emmetropes and hyperopes, further research is required to determine whether this association is causal. Ajai Verma and Abhishek Verma Copyright © 2015 Ajai Verma and Abhishek Verma. All rights reserved. Systemic Corticosteroids Therapy in the Management of Acute Zonal Occult Outer Retinopathy Sun, 11 Jan 2015 09:43:16 +0000 http://www.hindawi.com/journals/joph/2015/793026/ Purpose. To report the efficacy of systemic steroid in treating acute zonal occult outer retinopathy (AZOOR). Methods. Retrospective study of 9 consecutive patients of AZOOR, who received systemic steroid therapy in Changhua Christian Hospital from 2005 to 2013, is presented. The duration of therapy was at least 3 months. Patients were evaluated with best corrected visual acuity (BCVA), optical coherence tomography (OCT), fluorescein angiography (FA), indocyanine green angiography (ICG), visual field test, and electroretinography (ERG). Results. At the initial visit, visual field defect was noted in all patients and impaired visual acuity was noted in 4 eyes. OCT examination revealed disrupted ellipsoid zone at the macular area in 8 eyes and outer nuclear layer (ONL) loss in 1 eye. At the end of follow-up, all patients had improvement of visual field. The 4 eyes with initial impaired visual acuity had BCVA recovering to 20/20. Follow-up OCT showed partial or complete recovery of the ellipsoid zone at the macular area in the 8 eyes with initial disrupted ellipsoid zone and stable condition in the eye with ONL loss. The mean follow-up duration was months. Conclusion. Visual improvement was achieved in most cases of recent onset AZOOR after systemic steroid treatment. San-Ni Chen, Chang-Hao Yang, and Chung-May Yang Copyright © 2015 San-Ni Chen et al. All rights reserved. Indocyanine Green Assisted Removal of Orbital Lacrimal Duct Cysts in Children Thu, 08 Jan 2015 06:55:37 +0000 http://www.hindawi.com/journals/joph/2015/130215/ Aim. To report on the use of indocyanine green (ICG) during surgical removal of pediatric orbital lacrimal duct cysts. Method. We conducted a retrospective review of our cases of surgical excision of orbital lacrimal duct cysts using intraoperative injection of indocyanine green (ICG), which was used following inadvertent cyst rupture and volume loss. The dye allowed complete cyst visualization and complete excision despite volume loss or cyst rupture. Results. The study included 6 children (3 boys, mean age of 4.2 ± 0.84 years, range 3–5 years). Mean follow-up period was 9.3 months. All cysts were located in the inferonasal quadrant of the orbit (4 in the right side). In all cases, ICG was injected into the cyst at the time of surgery following unintentional cyst rupture. After the dye injection, it was easy to identify the borders of the cyst, permitting complete cyst removal, without any intra- or postoperative complications. Pathological examination revealed that all cysts were of lacrimal duct origin. Conclusion. Intraoperative injection of ICG into orbital cysts in children can aid surgeons in identifying cyst borders following inadvertent rupture, allowing complete removal. Shay Keren, Gad Dotan, Leah Leibovitch, Dinesh Selva, and Igal Leibovitch Copyright © 2015 Shay Keren et al. All rights reserved. Evaluation of Corneal Endothelium in Adolescents with Juvenile Glaucoma Tue, 06 Jan 2015 14:18:35 +0000 http://www.hindawi.com/journals/joph/2015/895428/ Purpose. To evaluate the endothelial cell density (ECD) and central corneal thickness (CCT) in adolescents with juvenile open-angle glaucoma (JOAG) and ocular hypertension (OH) and to investigate the influence of topical antiglaucoma medications on ECD and CCT in adolescents with JOAG. Methods. ECD and CCT were investigated in 66 eyes of 33 adolescents with JOAG. Depending on the topical treatment the eyes were classified into 4 groups: (1) topical carbonic anhydrase inhibitor, (2) prostaglandin analogs, (3) beta-blocker, and (4) CAI-beta-blocker combination. ECD and CCT were also checked in 24 adolescents with OH and in control group (33 persons). Results. ECD was significantly lower in eyes with JOAG (2639.5 cells/mm2) compared with ECD in eyes with OH (2924.5 cells/mm2) and in control group (2955.5 cells/mm2). CCT was 0.554 mm in eyes with JOAG, 0.55 mm in eyes with OH, and 0.544 mm in control group. ECD in patients with JOAG was 2730 cells/mm2 (1 group), 2773.5 cells/mm2 (2 group), 2539.5 cells/mm2 (3 group), and 2551 cells/mm2 (4 group). CCT was 0.556 mm in 1 group, 0.558 mm in 2 group, 0.532 mm in 3 group, and 0.544 mm in 4 group. Conclusions. Our findings indicate that JOAG and OH did not affect CCT, but JOAG has influence on ECD in adolescents. There were no significant differences between ECD and CCT of eyes treated with different kinds of antiglaucoma medications. Beata Urban, Alina Bakunowicz-Łazarczyk, Marta Michalczuk, and Małgorzata Krętowska Copyright © 2015 Beata Urban et al. All rights reserved. Association between Glucose Levels and Intraocular Pressure: Pre- and Postprandial Analysis in Diabetic and Nondiabetic Patients Tue, 06 Jan 2015 08:51:46 +0000 http://www.hindawi.com/journals/joph/2015/832058/ The aim of this study was to evaluate the relationship between glucose levels and intraocular pressure (IOP) fluctuation in diabetic and nondiabetic patients. Seventeen nondiabetic and 20 diabetic subjects underwent a complete ophthalmic examination, capillary glucose testing, and applanation tonometry in two distinct situations: first, fasting for at least 8 hours and, second, postprandial measurements. Baseline glucose levels were higher in diabetic patients (). Postprandial IOP was significantly higher than baseline IOP in diabetic () and nondiabetic patients (). Postprandial glucose levels were significantly higher than baseline measurements in both diabetic () and nondiabetic patients (). There was a significant association between glucose levels variation and IOP change in both diabetic patients (; ) and nondiabetic individuals (; ). There is also a significant association between the baseline glucose levels and IOP change in diabetic group (; ). In a multivariable model, the magnitude of glucose level change remained significantly associated with IOP variation even including age, baseline IOP, ancestry, and gender as a confounding factor (). We concluded that there is a significant association between blood glucose levels and IOP variation, especially in diabetic patients. Luis Guilherme Milesi Pimentel, Carolina P. B. Gracitelli, Leticia Sant’Ana Cardoso da Silva, Aline Katia Siqueira Souza, and Tiago Santos Prata Copyright © 2015 Luis Guilherme Milesi Pimentel et al. All rights reserved. Evaluation of Four Genetic Variants in Han Chinese Subjects with High Myopia Mon, 05 Jan 2015 11:20:33 +0000 http://www.hindawi.com/journals/joph/2015/729463/ High myopia is one of the leading causes of blindness worldwide. However, the exact etiology of high myopia remains unraveled despite numerous attempts of elucidation. Previous genome-wide association study (GWAS) has revealed that four single nucleotide polymorphisms (SNPs), including rs2969180, rs1652333, rs9307551, and rs7837791, were associated with high myopia in Caucasians. The present study was conducted to investigate whether these genetic variants were associated with high myopia in Han Chinese. These four SNPs were genotyped by SNaPshot method in a Han Chinese cohort composed of 827 patients with high myopia and 988 healthy controls. Among the SNPs genotyped, only rs9307551 was found to be significantly associated with high myopia in this study. Carriers of rs9307551A allele, AA, and AC genotypes had an increased risk of high myopia (OR = 1.33, 95% CI 1.14–1.54; OR = 1.75, 95% CI 1.28–2.38; OR = 1.59, 95% CI 1.24–2.01, resp.). Interestingly, when split by gender, the association between rs9307551 and high myopia proved to be gender-specific with significance observed only in females but not males. These findings suggested that the SNP of rs9307551 showed a gender-specific association with high myopia in the Han Chinese population. In addition, LOC100506035, a lincRNA gene, might play a crucial role in the susceptibility to high myopia. Zimeng Ye, Huaichao Luo, Bo Gong, Ying Lin, Ping Shuai, Pu Wang, Changning Ye, Zhenglin Yang, Wanjun Wang, and Yi Shi Copyright © 2015 Zimeng Ye et al. All rights reserved. Intrastromal Corneal Ring Segment Implantation (Keraring 355°) in Patients with Central Keratoconus: 6-Month Follow-Up Mon, 05 Jan 2015 09:02:50 +0000 http://www.hindawi.com/journals/joph/2015/916385/ We evaluate the efficacy and safety of Keraring 355° intrastromal corneal ring segment (ICRS) implantation aided by PocketMaker microkeratome for the correction of keratoconus. Patients underwent ICRS insertion using mechanical dissection with PocketMaker microkeratome and completed 6 months of follow-up. Uncorrected visual acuity (UCVA), best spectacle-corrected visual acuity (BSCVA), refraction, topographic findings, safety, efficacy index, and adverse events were reported for six months postoperatively. We evaluated 15 eyes of 15 patients (12 men) with a mean age of 28.87 ± 6.94 years (range 21–49 years). At final postoperative examination, there was a statistically significant reduction in the spherical equivalent refractive error compared to preoperative measurements (−5.46 ± 1.52 to −2.01 ± 1.63 D, ). Mean preoperative UCVA (logMAR) before implantation was 0.79 ± 0.48, and postoperative UCVA was 0.28 ± 0.15, . Mean preoperative BSCVA (logMAR) before implantation was 0.36 ± 0.21; at final follow-up examination BSCVA was 0.18 ± 0.9, . Mean decreased from 48.33 to 43.31 D, . All patients were satisfied with ICRS implantation; 86.7% were moderately to very happy with the results. No intraoperative or postoperative complications were demonstrated. This preliminary study shows that ICRS (Keraring 355°) implantation is an efficient, cost-effective, and minimally invasive procedure for improving visual acuity in nipple type keratoconic corneas. Khosrow Jadidi, Seyed Aliasghar Mosavi, Farhad Nejat, Mostafa Naderi, Leila Janani, and Sara Serahati Copyright © 2015 Khosrow Jadidi et al. All rights reserved. Erratum to “Epigenetic Modifications and Potential New Treatment Targets in Diabetic Retinopathy” Tue, 30 Dec 2014 08:24:17 +0000 http://www.hindawi.com/journals/joph/2014/836450/ Lorena Perrone, Carmela Matrone, and Lalit P. Singh Copyright © 2014 Lorena Perrone et al. All rights reserved. Posterior Pole Sparing Laser Photocoagulation Combined with Intravitreal Bevacizumab Injection in Posterior Retinopathy of Prematurity Sun, 28 Dec 2014 07:53:36 +0000 http://www.hindawi.com/journals/joph/2014/257286/ Purpose. To report the results of the posterior pole sparing laser photocoagulation combined with intravitreal bevacizumab injection (IVB) in retinopathy of prematurity (ROP). Methods. A retrospective chart review of premature babies with ROP, all of whom received laser photocoagulation with IVB. Eleven eyes of 6 infants with advanced zone I ROP underwent laser ablation sparing posterior pole with concurrent IVB. The results were compared with those of full-laser treatment combined with IVB to 8 eyes of 5 infants with advanced ROP without involvement of the posterior pole. Results. The posterior pole sparing laser with IVB was performed with zone I, stage 3+ ROP at the mean postmenstrual age of 36 weeks and 5 days. The plus sign decreased significantly at postoperative day 1, the neovascular proliferation regressed by postoperative week 1, and the normal vascularization started at postoperative day 32 on the average. Two months after treatment, vascularization of the spared avascular area was completed. There was no macular dragging, tractional retinal detachment, foveal destruction by laser scars, or any other adverse event. No significant anatomical differences were identified from those of full-laser ablation combined with IVB. Conclusions. Posterior pole sparing laser with IVB can give favorable results without destruction of posterior pole retina. Rebecca Kim and Yu Cheol Kim Copyright © 2014 Rebecca Kim and Yu Cheol Kim. All rights reserved. A Delphi Study to Detect Deficiencies and Propose Actions in Real Life Treatment of Neovascular Age-Related Macular Degeneration Sun, 21 Dec 2014 00:10:26 +0000 http://www.hindawi.com/journals/joph/2014/595132/ Purpose. Spanish retina specialists were surveyed in order to propose actions to decrease deficiencies in real-life neovascular age macular degeneration treatment (nv-AMD). Methods. One hundred experts, members of the Spanish Vitreoretinal Society (SERV), were invited to complete an online survey of 52 statements about nv-AMD management with a modified Delphi methodology. Four rounds were performed using a 5-point Linkert scale. Recommendations were developed after analyzing the differences between the results and the SERV guidelines recommendations. Results. Eighty-seven specialists completed all the Delphi rounds. Once major potential deficiencies in real-life nv-AMD treatment were identified, 15 recommendations were developed with a high level of agreement. Consensus statements to reduce the burden of the disease included the use of treat and extend regimen and to reduce the amount of diagnostic tests during the loading phase and training technical staff to perform these tests and reduce the time between relapse detection and reinjection, as well as establishing patient referral protocols to outside general ophthalmology clinics. Conclusion. The level of agreement with the final recommendations for nv-AMD treatment among Spanish retinal specialist was high indicating that some actions could be applied in order to reduce the deficiencies in real-life nv-AMD treatment. Alfredo García-Layana, Luis Arias, Marta S. Figueroa, Javier Araiz, José María Ruiz-Moreno, José García-Arumí, Francisco Gómez-Ulla, María Isabel López-Gálvez, Francisco Cabrera-López, José Manuel García-Campos, Jordi Monés, Enrique Cervera, Felix Armadá, Roberto Gallego-Pinazo, Antonio Piñero-Bustamante, and Miguel Angel Serrano-Garcia Copyright © 2014 Alfredo García-Layana et al. All rights reserved. Factors Associated with Significant Ocular Injury in Conservatively Treated Orbital Fractures Tue, 16 Dec 2014 13:53:33 +0000 http://www.hindawi.com/journals/joph/2014/412397/ Purpose. To determine factors associated with the presence of significant ocular injury in subjects with orbital fractures. Subjects. A consecutive prospective cohort of 161 patients presenting to a general tertiary referral hospital with orbital fractures and undergoing initial conservative treatment was identified. Subjects were assessed at time of injury for the need for emergency surgery, and those initially treated conservatively were subsequently followed up by the Ophthalmology Department to assess for ocular injury requiring ophthalmic management at 1–7 days after injury. Associations between ocular injury and age, sex, visual acuity, presence of blowout fracture, extent of orbital involvement, and presence of distant facial fractures were assessed. Results. 142 male (average age of 32 [95% CI 30–35]) and 19 female (average age of 49 [95% CI 39–59]) subjects were identified. 17 subjects were diagnosed with significant ocular injury. Ocular injury was significantly associated with LogMAR VA worse than 0.2 (OR 49 [95% CI 11–217, ]), but no relationship was noted for age, sex, presence of blowout fracture, extent of fractures, or presence of distal facial fractures. LogMAR visual acuity worse than or equal to 0.2 had a 98% negative predictive value for ocular injury in the setting of orbital fractures. Conclusions. Demographic and nonophthalmic fracture characteristics were not useful predictors of ocular injury in orbital fractures. LogMAR visual acuity worse than or equal to 0.2 is a highly sensitive and useful guide of the need for ophthalmic referral in subjects with orbital fractures. Christopher J. Layton Copyright © 2014 Christopher J. Layton. All rights reserved. Measuring Visual Function Using the MultiQuity System: Comparison with an Established Device Tue, 16 Dec 2014 07:03:50 +0000 http://www.hindawi.com/journals/joph/2014/180317/ Purpose. To compare measures of visual acuity (VA) and contrast sensitivity (CS) from the Thompson Xpert 2000 and MultiQuity (MiQ) devices. Methods. Corrected distance VA (CDVA) and CS were measured in the right eye of 73 subjects, on an established system (Thompson Xpert) and a novel system (MiQ 720). Regression was used to convert MiQ scores into the Thompson scale. Agreement between the converted MiQ and Thompson scores was investigated using standard agreement indices. Test-retest variability for both devices was also investigated, for a separate sample of 24 subjects. Results. For CDVA, agreement was strong between the MiQ and Thomson devices (accuracy = 0.993, precision = 0.889, CCC = 0.883). For CS, agreement was also strong (accuracy = 0.996, precision = 0.911, CCC = 0.907). Agreement was unaffected by demographic variables or by presence/absence of ocular pathology. Test-retest agreement indices for both devices were excellent: in the range 0.88–0.96 for CDVA and in the range 0.90–0.98 for CS. Conclusion. MiQ measurements exhibit strong agreement with corresponding Thomson measurements, and test-retest results are good for both devices. Agreement between the two devices is unaffected by age or ocular pathology. Patrycja Smolarek-Kasprzak, John M. Nolan, Stephen Beatty, Jessica Dennison, Kwadwo Owusu Akuffo, Robert Kuchling, Jim Stack, and Graham O’Regan Copyright © 2014 Patrycja Smolarek-Kasprzak et al. All rights reserved. The Association between Diabetic Retinopathy and Levels of Ischemia-Modified Albumin, Total Thiol, Total Antioxidant Capacity, and Total Oxidative Stress in Serum and Aqueous Humor Tue, 16 Dec 2014 00:10:25 +0000 http://www.hindawi.com/journals/joph/2014/820853/ Purpose. To investigate the oxidant and antioxidant status of patients with type 2 diabetes mellitus and nonproliferative diabetic retinopathy (DRP). Methods. Forty-four patients who had cataract surgery were enrolled in the study. We included 22 patients with DRP in one group and 22 patients in the control group. Samples of aqueous humor and serum were taken from all patients. Serum and aqueous ischemia-modified albumin (IMA), total thiol, total antioxidant capacity (TAC), and total oxidative stress (TOS) levels were compared in two groups. Results. Median serum IMA levels were 44.80 absorbance units in the DRP group and 40.15 absorbance units in the control group (). Median serum total thiol levels in the DRP group were significantly less than those in the control group (3051.13 and 3910.12, resp., ). Mean TOS levels in the serum were 2.93 ± 0.19 in the DRP group and 2.61 ± 0.26 in the control group (). The differences in mean total thiol, TAC, and TOS levels in the aqueous humor and mean TAC levels in the serum were not statistically significant. Conclusion. IMA, total thiol, and TOS levels in the serum might be useful markers in monitoring the risk of DRP development. Kadir Kirboga, Ayse V. Ozec, Mustafa Kosker, Ayhan Dursun, Mustafa I. Toker, Huseyin Aydin, Haydar Erdogan, Aysen Topalkara, and Mustafa K. Arici Copyright © 2014 Kadir Kirboga et al. All rights reserved. Interocular Shift of Visual Attention Enhances Stereopsis and Visual Acuities of Anisometropic Amblyopes beyond the Critical Period of Visual Development: A Novel Approach Mon, 15 Dec 2014 00:10:41 +0000 http://www.hindawi.com/journals/joph/2014/615213/ Aims. Increasing evidence shows that imbalanced suppressive drive prior to binocular combination may be the key factor in amblyopia. We described a novel binocular approach, interocular shift of visual attention (ISVA), for treatment of amblyopia in adult patients. Methods. Visual stimuli were presented anaglyphically on a computer screen. A square target resembling Landolt C had 2 openings, one in red and one in cyan color. Through blue-red goggles, each eye could only see one of the two openings. The patient was required to report the location of the opening presented to the amblyopic eye. It started at an opening size of 800 sec of arc, went up and down in 160 sec of arc step, and stopped when reaching the 5th reversals. Ten patients with anisometropic amblyopia older than age 14 (average age: 26.7) were recruited and received ISVA treatment for 6 weeks, with 2 training sessions per day. Results. Both Titmus stereopsis () and Random-dot stereopsis were significantly improved. Average improvement in best corrected visual acuity (BCVA) was 0.74 line . Conclusions. The ISVA treatment may be effective in treating amblyopia and restoring stereoscopic function. Liwen Huang, Xinghuai Sun, Gang Luo, Shuai Liu, Rui Liu, Behzad Mansouri, Vicky wing lai Wong, Wen Wen, Hong Liu, and Ai-Hou Wang Copyright © 2014 Liwen Huang et al. All rights reserved. Presence of Dry Eye in Patients with Hashimoto’s Thyroiditis Sun, 14 Dec 2014 07:42:45 +0000 http://www.hindawi.com/journals/joph/2014/754923/ Purpose. To evaluate the tear function tests in patients with Hashimoto’s thyroiditis and to compare the results with healthy subjects. Methods. A hundred and ten patients with Hashimoto’s thyroiditis and 100 healthy subjects were included in this study. The presence of thyroid-associated ophthalmopathy and tear function tests were evaluated clinically. The results were first compared between the patients and the control groups and then compared between patients with NOSPECS and patients without NOSPECS. Logistic regression analyses of the risk factors for dry eye including sex, gender, free plasma thyroxine, proptosis, upper eyelid margin-reflex distance, and duration of the disease were also evaluated. Results. The mean ocular surface disease index score was significantly higher and mean Schirmer and mean tear break-up time scores were significantly lower in patients compared to control subjects. Mean Schirmer and tear break-up time scores were found to be significantly lower in patients with NOSPECS when compared to the patients without NOSPECS. Both proptosis and free plasma thyroxine levels were significantly associated with dry eye. Conclusions. Patients with Hashimoto’s thyroiditis tend to develop dry eye more common than healthy subjects. Proptosis and lower free plasma thyroxine levels were found to be risk factors for the presence of dry eye. Emrah Kan, Elif Kılıçkan, Gulçin Ecemiş, Emrullah Beyazyildiz, and Ramis Çolak Copyright © 2014 Emrah Kan et al. All rights reserved. Predicting Visual Outcomes for Macula-Off Rhegmatogenous Retinal Detachment with Optical Coherence Tomography Thu, 11 Dec 2014 00:10:37 +0000 http://www.hindawi.com/journals/joph/2014/269837/ Purpose. We evaluated the ability of novel optical coherence tomography (OCT) parameters to predict postoperative best-corrected visual acuity (BCVA) in macula-off rhegmatogenous retinal detachment (RRD) eyes. Methods. We reviewed the medical records of 56 consecutive eyes with macula-off RRD. Clinical findings were analyzed including the relationship between preoperative OCT findings and 6-month postoperative BCVA. Results. Six-month postoperative BCVA was significantly correlated with preoperative findings including retinal height at the fovea, total and inner layer cross-sectional macular area within 2 mm of the fovea, and preoperative BCVA (, and , resp.). Multiple regression analysis revealed that the duration of macular detachment and total cross-sectional macular area were independent factors predicting 6-month postoperative BCVA ( and , resp.). Conclusions. Measuring preoperative total cross-sectional area of the macular layer within 2 mm of the fovea with OCT is a useful and objective way to predict postoperative visual outcome in eyes with macula-off RRD. Noriyuki Suzuki, Hiroshi Kunikata, Naoko Aizawa, Toshiaki Abe, and Toru Nakazawa Copyright © 2014 Noriyuki Suzuki et al. All rights reserved. Correlation of Optic Nerve Microcirculation with Papillomacular Bundle Structure in Treatment Naive Normal Tension Glaucoma Tue, 09 Dec 2014 09:03:35 +0000 http://www.hindawi.com/journals/joph/2014/468908/ Purpose. To assess the association between optic nerve head (ONH) microcirculation, central papillomacular bundle (CPB) structure, and visual function in eyes with treatment naive normal tension glaucoma (NTG). Methods. This study included 40 eyes of 40 patients with NTG and 20 eyes of 20 normal patients. We used laser speckle flowgraphy (LSFG) to measure mean blur rate (MBR) in all eyes and calculated the ratio of MBR in the horizontal quadrants of tissue area ONH (temporal/nasal ratio of MBR in the tissue area: T/N MT). Clinical findings also included retinal nerve fiber layer thickness (RNFLT) and ganglion cell complex thickness (GCCT) in the CPB and macular areas, best-corrected visual acuity (BCVA), mean deviation (MD), and refractive error. Results. T/N MT was correlated with both BCVA and MD. The OCT parameters most highly correlated with T/N MT were macular RNFLT and mid-CPB RNFLT. Furthermore, T/N MT, mid-CPB RNFLT, and macular RNFLT were higher in NTG than in normal eyes. A discrimination analysis revealed that T/N MT and refractive error were independent factors indicating NTG. Conclusions. Our results suggest that T/N MT is a candidate biomarker of NTG. Furthermore, T/N MT reflects visual function, including acuity and sensitivity, and CPB structure. Wataru Kobayashi, Hiroshi Kunikata, Kazuko Omodaka, Kyousuke Togashi, Morin Ryu, Masahiro Akiba, Gaku Takeuchi, Tetsuya Yuasa, and Toru Nakazawa Copyright © 2014 Wataru Kobayashi et al. All rights reserved. Effects of Misalignments in the Retinal Nerve Fiber Layer Thickness Measurements with Spectral Domain Optical Coherence Tomography Tue, 09 Dec 2014 08:41:07 +0000 http://www.hindawi.com/journals/joph/2014/412915/ Purpose. To investigate misalignments (MAs) on retinal nerve fiber layer thickness (RNFLT) measurements obtained with SD-OCT. Methods. This was a retrospective, observational, cross-sectional study. Twenty-seven healthy and 29 glaucomatous eyes of 56 individuals with one normal exam and another showing MA were included. MAs were defined as an improper alignment of vertical vessels in the en face image. MAs were classified in complete MA (CMA) and partial MA (PMA), according to their site: 1 (superior, outside the measurement ring (MR)), 2 (superior, within MR), 3 (inferior, within MR), and 4 (inferior, outside MR). We compared RNFLT measurements of aligned versus misaligned exams in all 4 sectors, in the superior area (sectors 1 + 2), inferior area (sectors 3 + 4), and within the measurement ring (sectors 2 + 3). Results. RNFLT measurements at 12 clock-hour of eyes with MAs in the superior area (sectors 1 + 2) were significantly lower than those obtained in the same eyes without MAs . No significant difference was found in other areas (sectors 1 + 2 + 3 + 4, sectors 3 + 4, and sectors 2 + 3). Conclusion. SD-OCT scans with superior MAs may present lower superior RNFLT measurements compared to aligned exams. Kleyton A. Barella, Fernanda Cremasco, Camila Zangalli, and Vital P. Costa Copyright © 2014 Kleyton A. Barella et al. All rights reserved. Comparison of Mycotic Keratitis with Nonmycotic Keratitis: An Epidemiological Study Sun, 07 Dec 2014 09:41:23 +0000 http://www.hindawi.com/journals/joph/2014/254302/ Purpose. This work aims to study the problems encountered with and the different epidemiological features of patients with fungal keratitis. Patients and Methods. All cases with keratitis attending the Outpatient Clinic of Ophthalmology Department at Tanta University Hospital during three years from the first of January 2011 to the end of December 2013 were selected and carefully examined and cases with mycotic keratitis were further examined and investigated. Results. From 66303 attendants during this period with different complaints, there were 361 cases (0.54%) with mycotic keratitis and 473 cases (0.71%) of nonmycotic origin. Mycotic keratitis is common between 40 and 60 years, more in farmers (64%), families with large number and large crowding index, rural than urban residence, and patients with outdoor water sources and insanitary sewage disposal. Positive fungal cultures were obtained in 84.5% and were negative in 15.5% of cases in spite of their typical clinical findings for diagnosis and their improvement with antifungal therapy. Conclusion. Mycotic keratitis is more frequent in farmers, rural areas, outdoor water supply, insanitary sewage disposal, and patients preceded with organic trauma. Atypical clinical findings were found in some cases and not all cases improved with specific antifungal therapy. Mohammad M. Khater, Nehal S. Shehab, and Anwar S. El-Badry Copyright © 2014 Mohammad M. Khater et al. All rights reserved. Macular Findings Obtained by Spectral Domain Optical Coherence Tomography in Retinopathy of Prematurity Wed, 03 Dec 2014 11:53:52 +0000 http://www.hindawi.com/journals/joph/2014/468653/ Purpose. To examine the macular findings obtained with spectral domain optical coherence tomography (SD OCT) in infants with retinopathy of prematurity (ROP). Materials and Methods. The macular SD OCT images of 190 premature infants were analyzed. Data regarding central foveal thickness (CFT), cystoid macular edema (CME), and cyst grading were compared. The relationships of CFT with gestational age and birth weight were investigated. Results. The results were obtained from 358 eyes of 179 infants (81 females and 98 males) of a mean gestational age of weeks and a mean birth weight of  g. ROP was diagnosed in 126 eyes and CME in 139 eyes. A significantly greater percentage of eyes with ROP were found to have CME (54%) compared to eyes without ROP (31%; ). The incidence of CME was 46.3% for stage 1 ROP, 57.1% for stage 2, and 87.5% for stage 3. There was a weakly inverse correlation between CFT, gestational age, and birth weight (, ; , , resp., Spearman correlation test). Conclusions. High-quality SD OCT images can be obtained from premature infants using the iVue system. Severity and frequency of CME in premature infants increase as stage of ROP increases. Muhammet Kazim Erol, Ozdemir Ozdemir, Deniz Turgut Coban, Ahmet Burak Bilgin, Berna Dogan, Esin Sogutlu Sari, and Devrim Toslak Copyright © 2014 Muhammet Kazim Erol et al. All rights reserved. Evaluation of Corneal Topography and Biomechanical Parameters after Use of Systemic Isotretinoin in Acne Vulgaris Sun, 30 Nov 2014 00:10:25 +0000 http://www.hindawi.com/journals/joph/2014/701361/ Purpose. We report the effect of isotretinoin on corneal topography, corneal thickness, and biomechanical parameters in patients with acne vulgaris. Method. Fifty-four eyes of 54 patients who received oral isotretinoin for treatment of acne vulgaris were evaluated. All patients underwent a corneal topographical evaluation with a Scheimpflug camera combined with Placido-disk (Sirius), ultrasonic pachymetry measurements, and corneal biomechanical evaluation with an ocular response analyzer at baseline, in the 1st, 3rd, and 6th months of treatment, and 6 months after isotretinoin discontinuation. Results. The thinnest corneal thickness measured with Sirius differed significantly in the 1st, 3rd, and 6th months compared with the baseline measurement; there was no significant change in ultrasonic central corneal thickness measurements and biomechanical parameters (corneal hysteresis and corneal resistance factor) throughout the study. Average simulated keratometry and surface asymmetry index increased significantly only in the first month of treatment according to the baseline. All changes disappeared 6 months after the end of treatment. Conclusion. Basal tear secretion and corneal morphologic properties were significantly influenced during the systemic isotretinoin treatment and the changes were reversible after discontinuation. No statistical important biomechanical differences were found to be induced by isotretinoin. Yusuf Yildirim, Onur Olcucu, Alper Agca, Cengiz Alagoz, Ali Demircan, Abdurrahman Basci, Ahmet Demirok, and Zekayi Kutlubay Copyright © 2014 Yusuf Yildirim et al. All rights reserved. Interocular Symmetry in Macular Choroidal Thickness in Children Mon, 24 Nov 2014 10:14:51 +0000 http://www.hindawi.com/journals/joph/2014/472391/ Objective. To report interocular differences in choroidal thickness in children using spectral domain optical coherence tomography (SD-OCT) and correlate findings with biometric data. Methods. This observational cross-sectional study included 91 (182 eyes) healthy children aged 6 to 17 years with no ocular abnormality except refractive error. After a comprehensive eye exam and axial length measurement, high definition macular scans were performed using SD-OCT. Two observers manually measured the choroidal thickness at the foveal center and at 1500 µm nasally, temporally, inferiorly, and superiorly. Interocular differences were computed; correlations with age, gender, refractive error, and axial length were performed. Results. Mean age was 10.40 ± 3.17 years; mean axial length and refractive error values were similar between fellow eyes. There was excellent correlation between the two observers’ measurements. No significant interocular differences were observed at any location. There was only a trend for right eyes to have higher values in all thicknesses, except the superior thickness. Most of the choroidal thickness measurements correlated positively with spherical equivalent but not with axial length, age, or gender. Conclusion. Choroidal thickness measurements in children as performed using SD-OCT revealed a high level of interobserver agreement and consistent interocular symmetry. Values correlated positively with spherical equivalent refraction. Christiane Al-Haddad, Lama El Chaar, Rafic Antonios, Mays El-Dairi, and Baha’ Noureddin Copyright © 2014 Christiane Al-Haddad et al. All rights reserved. Socioeconomic Barriers to Rhegmatogenous Detachment Surgery in Brazil Sun, 23 Nov 2014 11:58:21 +0000 http://www.hindawi.com/journals/joph/2014/452152/ Purpose. To verify access barriers patients with retinal detachment face to arrive at a reference center and to evaluate patients’ knowledge about the disease. Methods. Transversal study that applied a questioner to 65 patients of the Clinical Hospital of the University of Sao Paulo with retinal detachment between February and August of 2010. Results. Reasons for not performing the surgery in other services were as follows: 47% were referred because there was not vitreoretinal surgeon at original service; 27% could not afford the surgery, had no health insurance, or had no coverage at health insurance plan for the procedure. Time between the first symptom and the arrival at our service was as follows: 18 patients arrived in up to 7 days; 35 between 8 and 30 days; 8 between 31 and 90 days; 5 in more than 90 days. Reasons for delay were as follows: 70% did not know how serious the pathology was; 56% thought that it had spontaneous cure; 16% did not have money to pay for ophthalmic evaluation, 10% did not know where to go and 24% for other reasons. Conclusion. Educational programs about disease and measures to optimize the referral to specialized services are needed to accelerate the treatment of patients with rhegmatogenous retinal detachment. Pedro Carlos Carricondo, Tatiana Tanaka, Suellen Tiemi Shibata, Leandro Cabral Zacharias, Thiago Aragão Leite, Maria Fernanda Abalem, and Walter Y. Takahashi Copyright © 2014 Pedro Carlos Carricondo et al. All rights reserved.