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Journal of Ophthalmology
Volume 2017 (2017), Article ID 1203269, 6 pages
https://doi.org/10.1155/2017/1203269
Research Article

Intraocular Pressure, Axial Length, and Refractive Changes after Phacoemulsification and Trabeculectomy for Open-Angle Glaucoma

1Carol Davila University of Medicine and Pharmacy, Dionisie Lupu 37 Street, 020021 Bucharest, Romania
2Emergency University Hospital, Department of Ophthalmology, Splaiul Independentei 169, 050098 Bucharest, Romania
3Department of Clinical Pharmacology, Medical University of Vienna, Waehringer Guertel 18-20, 1090 Vienna, Austria
4Center for Medical Physics and Biomedical Engineering, Medical University of Vienna, Waehringer Guertel 18-20, 1090 Vienna, Austria
5Singapore Eye Research Institute, The Academia, 20 College Road Discovery Tower Level 6, Singapore 169856
6Lee Kong Chian School of Medicine, Nanyang Technological University, Novena Campus, 11 Mandalay Road, Singapore 308232
7Ophthalmological Emergency Hospital, Alexandru Lahovari 1 Square, Bucharest, Romania

Correspondence should be addressed to Raluca Claudia Iancu; moc.oohay@2002elisavacular

Received 9 March 2017; Accepted 30 April 2017; Published 4 June 2017

Academic Editor: Antonio Queiros

Copyright © 2017 Alina Popa-Cherecheanu 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.

Abstract

Purpose. To compare changes in intraocular pressure (IOP), axial eye length (AEL), and refractive outcome in primary open-angle glaucoma patients undergoing cataract surgery and trabeculectomy in dependence of the sequence of surgeries. Materials and Methods. We retrospectively analysed 48 eyes. The changes in refraction, intraocular pressure, and axial eye length were analysed after surgery. In group A (21 subjects), phacoemulsification was performed before trabeculectomy, and in group B (27 subjects), trabeculectomy was performed before phacoemulsification with a minimum time span between interventions of 6 months. Results. The reduction in IOP and the decrease in AEL after trabeculectomy were significant after 6 and 12 months postsurgery ( each). The decrease in AEL was 0.42 ± 0.11% at 6 months after surgery and 0.40 ± 0.13% after 12 months from surgery; this decrease in AEL was comparable between the groups. The refractive outcome was significantly different between the groups (group A: 0.35 ± 0.75 dpt, group B: −0.05 ± 0.36 dpt, ); in group A, trabeculectomy caused a hyperopic shift of 0.34 ± 0.44 dpt () at 12 months postsurgery. Conclusion. IOP reduction after trabeculectomy causes AEL shortening. The effect on refractive outcome depends on the sequence of surgeries. Better refractive outcome is achieved if phacoemulsification is performed after trabeculectomy.