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D.M. Stanescu, E. Rechtman, F. Sallo, L. O'Toole, V. Luong, F. Fitzke; The Photopic and Scotopic Visual Thresholds in Eyes With Solar Retinopathy: A Comparison With the Anatomical Damage . Invest. Ophthalmol. Vis. Sci. 2005;46(13):4077.
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© ARVO (1962-2015); The Authors (2016-present)
Purpose: To assess the functional damage, as measured by fine–matrix mapping, in patients with solar retinopathy, and to compare it to the anatomical damage, as measured by optical coherence tomography (OCT3). Methods: We retrospectively assessed all solar retinopathy cases that as part of their work–up at Moorfields Eye Hospital were tested with the fine–matrix mapping (FMM) technique. FMM allows measuring the visual thresholds at a 100 locations at the central 9 degrees of the macula, under light (photopic) and dark–adapted (scotopic) conditions. Descriptive comparison between these FMM findings and the anatomical damage seen on OCT3 images, was made. Results: Four patients (2 female, 2 male; age 20, 22, 45, 64) were identified. FMM in all 4 patients disclosed abnormal lower than normal thresholds. In all cases, FMM photopic thresholds were more impaired than the scotopic ones. OCT3 images demonstrated abnormal reflectivity at the outer paracentral retina, such as fragmentation or interruption of the inner highly reflective layer, corresponding to the junction between the photoreceptor inner and outer segments. Conclusions: This finding suggests relative differences in rod and cone mediated function after solar maculopathy. These findings add to our understanding of the anatomical abnormalities caused by solar retinopathy, as seen by OCT3.
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