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Phaco-viscocanalostomy versus phaco-trabeculotomy: a middle-term study.

Abstract：

PURPOSE:To compare the surgical outcomes between phaco-viscocanalostomy and phaco-trabeculotomy in open-angle glaucoma. PATIENTS AND METHODS:In a nonrandomized, retrospective clinical study, 110 eyes underwent phaco-viscocanalostomy (VCS group), and 110 eyes underwent phaco-trabeculotomy (LOT group). The mean follow-up was 857+/-409 (+/-SD) days (P=0.4777). RESULTS:The mean preoperative treated intraocular pressure (IOP) values were 20.2+/-3.5 mm Hg in the VCS group and 20.9+/-3.5 mm Hg in the LOT group (P=0.3377). The postoperative IOPs in the VCS group were 15.0+/-3.0 and 16.1+/-3.0 mm Hg at 1 and 3 years, and in the LOT group 16.3+/-2.9 mm Hg (P=0.0088) and 16.5+/-3.3 mm Hg (P=0.4993), respectively. The number of medications used in the VCS group was significantly lower than in the LOT group during the observation periods (P< or =0.0130). The probabilities of achieving IOPs< or =21 mm Hg at 3 years in the VCS group were 92.0% with or without mediations and 58.2% without medications, and were significantly better than those of the LOT group (84.7% and 36.0%, P=0.0334 and P<0.0001 by log-rank test, respectively). The probabilities of achieving IOPs< or =16 mm Hg at 3 years in the VCS group were 30.5% with or without mediations and 30.3% without medications, whereas those in the LOT group were 27.5% (P=0.1799) and 19.4% (P=0.0010), respectively. The visual outcome was similar between the groups. Postoperative hyphema (> or =2 mm) and IOP spikes (> or =30 mm Hg) occurred significantly less in the VCS group (2.7 and 3.6%, respectively) than in the LOT group (26.4 and 28.2%, respectively; P<0.0001). In 13 eyes (11.8%) of the LOT group, the highest IOP level was recorded 40 mm Hg or higher. Vitreous hemorrhage and central visual loss occurred in 1 case each in the LOT group. CONCLUSIONS:After a middle-term observation, phaco-viscocanalostomy provides better IOP control and a lower incidence of vision-threatening complications than phaco-trabeculotomy.

journal_name

J Glaucoma

journal_title

Journal of glaucoma

authors

Park M,Hayashi K,Takahashi H,Tanito M,Chihara E

doi

10.1097/01.ijg.0000212265.96864.77

subject

Has Abstract

pub_date

2006-10-01 00:00:00

pages

456-61

issue

eissn

1057-0829

issn

1536-481X

pii

00061198-200610000-00017

journal_volume

pub_type

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Phaco-viscocanalostomy versus phaco-trabeculotomy: a middle-term study.