Retour à la
bibliographie d'Avril 2008Retinal imaging
with adaptive optics scanning laser ophthalmoscopy in unexplained central ring
scotoma.
(Apport de l'imagerie adaptative avec le SLO
dans les cas de scotomes annulaires inexpliqués)
Joeres S, Jones SM,
Chen DC, Silva D, Olivier S, Fawzi A, Castellarin A, Sadda SR.
Doheny Retina Institute, Doheny Eye Institute, Keck School of Medicine of
the University of Southern California, Los Angeles, CA 90033, USA.
SUMMARY : Adaptive optics scanning laser ophthalmoscopy allows for noninvasive, in vivo visualization of retinal abnormalities at a cellular level. We herein describe for the first time, to our knowledge, the utility of high-resolution retinal imaging in studying the photoreceptor mosaic in an otherwise unexplained visual disturbance. Imaging of the cone mosaic was performed in a 64-year-old man with a unilateral ringlike paracentral distortion that could not be explained using common clinical imaging instruments. Adaptive optics scanning laser ophthalmoscopy findings revealed a parafoveal circular abnormality of the cone mosaic approximately 3 degrees in diameter that corresponded to the ring of visual disturbance. Visualization of the cone mosaic with adaptive optics scanning laser ophthalmoscopy can reveal photoreceptor damage that may not be detectable with standard imaging devices. Optical axial sectioning of the retina may help in identifying and localizing abnormalities within the retinal layers.
Retour à la
bibliographie d'Avril 2008
(Dernière mise à jour de cette page le 31/07/08)