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Filtration surgery may lead to increased foveal retinal thickness
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WURZBURG, Germany — Reducing the intraocular pressure after filtration surgery may lead to a moderate increase in foveal retinal thickness during the first month. It is not however associated with shallowing of the anterior chamber, according to a study.
Gulsara Karasheva and colleagues here at the University Eye Hospital measured the thickness of the fovea and the extrafoveal retina of 45 patients who underwent filtration surgery. Preoperatively, the mean IOP was 25.5 mm Hg, which decreased at all postop visits. None of the patients developed prolonged postop hypotony. Foveal thickness was measured for all patients at day 2, week 1 and 1 month and was elevated from preop levels. Macular thickness also increased at postop from baseline for all patients. No significant correlation existed between IOP reduction and retinal thickness or anterior chamber depth.
The study is published in the March issue of Graefe’s Archive for Clinical and Experimental Ophthalmology.