648 Modifications anatomiques et fonctionnelles dans la rétinopathie solaire - 13/02/25
Anatomical and functional changes in solar retinopathy
Résumé |
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.
Le texte complet de cet article est disponible en PDF.Vol 30 - N° S2
P. 2S334 - avril 2007 Retour au numéroBienvenue sur EM-consulte, la référence des professionnels de santé.
