This 67YO male presented with hand motion vision from a macula-off rhegmatogenous retinal detachment (RRD).
The outer retinal folds are dramatically imaged in both the Optos color and green channel images. An incidental, old asymptomatic branch retinal vein occlusion is also noted inferonasally.
Learning Points:
Hydration outer retinal folds are one of the key findings to help differentiate a RRD from exudative and traction retinal detachments.
The cause of these folds remains uncertain, but they may form as a result of hydration of glycosaminoglycans in the interphotoreceptor matrix (Dalvin et al., Retinal Cases & Brief Reports 2020;14;355-359).
