This 61YO male presented without a visual complaint. He was a +6 diopter hyperope OD and +5 diopter hyperope OS. Vision was 20/200 OD from refractive amblyopia and 20/40 OS.
Triton color imaging and swept-source OCT show bilateral chorioretinal folds. Optos fundus autofluorescence (FAF) shows variable hyper- and hypo-FAF changes from the folds, and fluorescein angiography shows alternating transmission and blocking defects.
Learning Points:
Chorioretinal folds appear clinically as often subtle horizontal and oblique subretinal folds. There are extensive intra- and extra-ocular causes for chorioretinal folds. The typical findings in idiopathic chorioretinal folds are a mild/moderate hyperopic prescription and bilateral, symmetric folds. The folds are thought to result from flattening of the macular sclera. When unilateral, an MRI is often indicated to rule out an orbital mass. Typical idiopathic chorioretinal folds, as in our patient, require no workup and usually cause no symptoms.
