To study the effect of deep sclerectomy (DS) in primary open-angle glaucoma (POAG) and exfoliative glaucoma (EXG).
We retrospectively analyzed the intraocular pressure (IOP)-lowering effect of DS in 235 consecutive eyes. Eyes were divided into 2 groups according to glaucoma subtype: POAG (127 eyes) and EXG (108 eyes). Postoperative IOP was the main outcome measurement. We recorded complete and qualified surgical success, need for YAG-laser goniopuncture, and need for postoperative glaucoma medication. We studied factors related to outcome of surgery in a Cox regression model.
In the POAG group, the mean (SD) IOP decreased from 22.6 (5.1) mm Hg preoperatively to 16.8 (7.5) mm Hg, with qualified success achieved in 70% of eyes. Postoperatively, 57% were without medication. In the EXG group, IOP decreased from 25.5 (6.5) mm Hg preoperatively to 16.5 (7.8) mm Hg postoperatively, with qualified success achieved in 66% of eyes. Postoperatively, 50% were without medication. Decrease in IOP was statistically significant in both groups (p<0.001). In the POAG group, 12%, and in the EXG group, 24% needed a reoperation in the follow-up period (p = 0.037). In the Cox regression model, 1 week IOP between 2 and 14 mm Hg without medication lowered the hazard rate of losing complete success by 34% (p = 0.031) and the hazard rate of losing qualified success by 54% (p = 0.004).
The IOP 1 week postoperatively seems to be a prominent indicator of surgical success. Deep sclerectomy is effective in reducing IOP in POAG and EXG subgroups, with reoperations more common in EXG eyes.
Eur J Ophthalmol 2016; 26(6): 568 - 574
Article Type: ORIGINAL RESEARCH ARTICLE
AuthorsSakari M.A. Suominen, Mika P. Harju, Eija T. Vesti
- • Accepted on 24/01/2016
- • Available online on 05/03/2016
- • Published in print on 04/11/2016
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- Suominen, Sakari M.A. [PubMed] [Google Scholar] 1, * Corresponding Author (email@example.com)
- Harju, Mika P. [PubMed] [Google Scholar] 1
- Vesti, Eija T. [PubMed] [Google Scholar] 2
Department of Ophthalmology, Helsinki University Central Hospital, Helsinki - Finland
Department of Ophthalmology, Turku University Central Hospital, Helsinki - Finland