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Abstract #46768 Published in IGR 13-3

Central 10-degree visual field change following trabeculectomy in advanced open-angle glaucoma

Fujishiro T; Mayama C; Aihara M; Tomidokoro A; Araie M
Eye 2011; 25: 866-871

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Purpose To prospectively examine changes in the central visual field (VF) in patients with advanced open-angle glaucoma (OAG) with advanced late stage after trabeculectomy for 12 months. Design Prospective interventional case series. Methods In all, 27 eyes of 27 OAG patients at a single center with a best-corrected visual acuity (BCVA) of (greater-than or equal to)40/200 and a mean total deviation of test locations of the 10-2 program of the Humphrey VF analyzer of (less-than or equal to)-20 dB preoperatively were enrolled. Intraocular pressure (IOP), VF parameters of the 10-2 program, and BCVA were examined for 12 months after trabeculectomy with mitomycin C. Slopes of VF parameters and their correlation with presumed risk factors were studied. Results IOP decreased from 19.7(plus or minus)5.8 to 9.7(plus or minus)2.6 mm Hg (P(less-than or equal to)0.001) over postoperative 1 year. The slopes of all VF parameters did not significantly differ from zero (P(greater-than or equal to)0.33), and none of the presumed factors significantly correlated with the slopes of those parameters (P(greater-than or equal to)0.14). There were two eyes (7%) and one eye (4%) with 2 lines of deterioration in BCVA (decimal fraction) at 1 and 12 months, respectively, after surgery with no apparent causes. Conclusions Trabeculectomy resulted in little change in the central 10-degree VF, but significant decrease in BCVA without apparent causes might occur approximately 5% of the cases.

C. Mayama. Department of Ophthalmology, University of Tokyo, Graduate School of Medicine, 7-3-1, Hongo, Bunkyo-ku, Tokyo 113-8655, Japan.

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Classification:

6.6.2 Automated (Part of: 6 Clinical examination methods > 6.6 Visual field examination and other visual function tests)
12.8.1 Without tube implant (Part of: 12 Surgical treatment > 12.8 Filtering surgery)

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