A Yellow Ring-shaped Macular Reflection - 18/08/11
, Dirk van Norren, PhD b
Inquiries to Peter J. DeLint MD, PhD, Alkmaar Medical Center, Wilhelminalaan 12, 1815 JD, Alkmaar, The NetherlandsRésumé |
Purpose |
To describe a yellow ring-shaped reflection in the macula of healthy subjects observed with a common indirect ophthalmoscope.
Design |
Observational case series.
Methods |
Fundus photographs of the macula were acquired with a slit lamp and 90-diopter lens in 5 healthy subjects (age range, 23-50 years) at a perpendicular angle and at an oblique angle to the retina.
Results |
The perpendicular fundus photographs showed a yellow ring-shaped reflection with a diameter of approximately 5 degrees. The oblique photographs had a dark red spot in the center.
Conclusions |
To our knowledge, this phenomenon has hitherto escaped attention in the literature. We conclude that the shape, size, and location of the yellow reflection are consistent with a cone origin. This observation may be used for diagnostic purposes.
Le texte complet de cet article est disponible en PDF.
Vol 140 - N° 1
P. 158-161 - juillet 2005 Retour au numéro
Article précédent
- Migration of Intraocular Silicone Into the Cerebral Ventricles
- Dong Fangtian, Dai Rongping, Zheng Lin, Yu Weihong
- Chlamydia Conjunctivitis and Central Retinal Vein Occlusion
- Michael W. Stewart, Thomas J. Liesegang, Brian L. Schwam
Bienvenue sur EM-consulte, la référence des professionnels de santé.
L’accès au texte intégral de cet article nécessite un abonnement.
Déjà abonné à cette revue ?