Ophthalmic manifestations of primary oxalosis

The clinical and pathological findings of a 6-month-old infant with primary oxalosis, who died in renal failure, are presented. The oxalate crystalline deposition in the retinal pigment epithelium corresponded to the flecked retinopathy observed ophthalmoscopically. The difficulties in establishing a precise biochemical diagnosis are discussed and the relevant ophthalmic literature is reviewed.