648 Modifications anatomiques et fonctionnelles dans la rétinopathie solaire

Introduction Solar retinopathy, due to macular exposure to solar radiation, is mediated by photochemical and thermal mechanisms. We describe the optical coherence tomography and the fundus-related perimetry findings of the disease. Aim and Methods We performed a complete ophthalmological examination in 3 patients affected by solar retinopathy, including optical coherence tomography (OCT 3) and the fundus-related perimetry (FRP) after solar exposure, up to 18 months after diagnosis. Results On initial visit, the optical coherence tomography scans revealed an irregular inner high-reflective layer that appeared fragmented in 2 patients and interrupted in 1 patient. In addition, OCT3 showed a hyperreflective lesion, which, in 1 patient, involved the full foveal thickness, and in 2 patients was confined to the outer half of the foveal layers. In 2 patients there was an associated reduced reflectivity of the outer high-reflective layer. These OCT3 signs disappeared as early as one month follow-up. Fundus-related perimetry (FRP) demonstrated, at the first visit, a significant reduction of retinal sensitivity in all patients, which was no longer evident at one-month follow-up. Discussion OCT3 was very successful in detecting the alteration of inner high-reflective layer, corresponding to the yellowish-white spot seen on ophthalmoscopy. FRP demonstrated the recovery of retinal sensitivity at one-month follow-up. Conclusion OCT3 is an effective tool in diagnosing solar retinopathy and in differentiating it from other maculopathies. FRP seems to be a useful adjunctive method to better characterize the functional aspect of the disease.