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M. Ugarte, T.H. Williamson; Micropsia and Macropsia Following Macula–Off Rhegmatogenous Retinal Detachment Surgical Repair . Invest. Ophthalmol. Vis. Sci. 2005;46(13):5483.
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Purpose: To measure micropsia and/or macropsia following successful surgical reattachment of the neuroretina to the retinal pigment epithelium after macula–off rhegmatogenous retinal detachment (RRD). Methods: Using a modified version of the New Aniseikonia Test, micropsia and macropsia was measured in the horizontal and vertical meridian in 15 patients (18–84 years) after successful surgical repair of macula–off RRD. 10 individuals (aged 20–80) with no ocular pathology and less than 1 D anisometropia were assessed for horizontal and vertical micropsia/macropsia and their readings compared with those from our series of patients. Statistical analysis was carried our using un–paired t–test. Results: Horizontal and vertical micropsia was measured in 14 patients ranging between 1 and 9%. In one patient micropsia was detected in the horizontal meridian and macropsia in the vertical meridian. In normal individuals, the perception of a smaller (micropsia) or larger (macropsia) image was 0.9 (+0.5) % and 0.5 (+ 0.6)% in the horizontal and vertical meridian, respectively. There was a statistically significant difference between both groups. Conclusions: Micropsia and macropsia can be contributing factors to the visual distortion experienced by patients following anatomically successful surgical repair of macula–off RRD. Identified symptomatic patients with micropsia and macropsia could be monitored for their response to surgical intervention.
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