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Journal of Ophthalmology
Volume 2016, Article ID 1383289, 7 pages
Clinical Study

Anterior Chamber Angle Evaluation following Phakic Posterior Chamber Collamer Lens with CentraFLOW and Its Correlation with ICL Vault and Intraocular Pressure

1Ophthalmology Department, Faculty of Medicine, Cairo University, Kasr Al Ainy, Cairo, Egypt
2Ophthalmology Department, Faculty of Medicine, Fayoum University, Al Fayoum, Egypt

Received 26 September 2016; Revised 4 November 2016; Accepted 17 November 2016

Academic Editor: Antonio Queiros

Copyright © 2016 Sherif A. Eissa et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


Purpose. To assess intraocular pressure (IOP), lens vaulting, and anterior chamber (AC) angle width, following V4C implantable Collamer lens (ICL) procedure for myopic refractive error. Methods. A prospective case series that enrolled 54 eyes of 27 patients that were evaluated before and after V4C phakic posterior chamber Collamer lens implantation for correction of myopic refractive error. Preoperative measurement of IOP was done using Goldmann applanation tonometer and anterior chamber angle width using both Van Herick slit lamp grading system and Scheimpflug tomography imaging (Oculus Pentacam). Follow-up of the aforementioned variables was at 1, 6, and 18 months postoperatively, together with ICL vault measurements. Results. The mean baseline IOP of showed a statistically significant () increase after 1 month that remained unchanged at 6 and 18 months postoperatively, with mean value of , , and , respectively. Pentacam AC angle width showed a statistically significant decrease at 1 , 6 , and 18 months postoperatively, with mean preoperative value of that decreased to , , and , at 1, 6, and 18 months, respectively. Mean ICL vault showed moderate correlation with Pentacam AC angle width at 1 and 6 months. Conclusion. V4C ICL implantation resulted in decrease in AC angle width and increase in IOP, within acceptable physiological values at all time points.