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Abstract #16876 Published in IGR 9-1
Effect of cataract extraction on SITA perimetry in patients with glaucoma
Rehman Siddiqui MA; Khairy HA; Azuara-Blanco AJournal of Glaucoma 2007; 16: 205-208
PURPOSE: To evaluate the effect of cataract extraction on Swedish Interactive Thresholding Algorithm (SITA) perimetry in patients with coexisting cataract and glaucoma. PATIENTS AND METHODS: This is a retrospective noncomparative interventional study. Thirty-seven consecutive patients with open-angle glaucoma who had cataract extraction alone or combined with trabeculectomy were included. All patients had SITA-standard 24-2 visual fields before and after the surgery. The main outcome measures were changes in mean deviation (MD) and pattern standard deviation (PSD). Additionally, changes in best-corrected visual acuity, intraocular pressure, and number of glaucoma medications were also studied. RESULTS: Visual field tests were performed 3.9 ± 4.4 months before surgery and 4.1 ± 2.8 months after surgery. Mean visual acuity improved after the surgery, from 0.41 ± 0.21 to 0.88 ± 0.32 (P < 0.001). After cataract extraction, SITA-standard mean MD improved from -12.3 ± 5.8 to -11.1 ± 6.3 (P = 0.023), whereas the change in mean PSD was statistically nonsignificant (from 7.2 ± 3.0 to 7.3 ± 3.6; P = 0.84). CONCLUSIONS: In glaucoma patients examined with SITA-standard, MD improved but PSD change was statistically nonsignificant, after the cataract surgery. SITA-standard PSD can be used to monitor glaucoma progression in patients with coexisting glaucoma and cataract.
Dr. M.A. Rehman Siddiqui, Department of Ophthalmology, NHS Grampian, United Kingdom.
Classification:
6.6.2 Automated (Part of: 6 Clinical examination methods > 6.6 Visual field examination and other visual function tests)
9.4.4.2 Glaucomas associated with cataracts (Part of: 9 Clinical forms of glaucomas > 9.4 Glaucomas associated with other ocular and systemic disorders > 9.4.4 Glaucomas associated with disorders of the lens)
