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1. History
2. Exam
3. Photos
4. Diagnosis
5. Teaching Points
6. Comments

Case 84 Diagnosis

Snowflake vitreoretinal degeneration

Differential Diagnosis

• Juvenile retinoschisis: snowflake degeneration does not have the sharp convex posterior border of juvenile retinoschisis; also, unlike patients with juvenile retinoschisis, those with snowflake vitreoretinal degeneration can have fairly good electroretinogram responses
• Wagner’s disease: process occurs in deep retinal layers with atrophy of the inner retinal layers; higher incidence of retinal detachment
• Stickler’s syndrome: lacks vascular sheathing, disappearance of peripheral retinal vessels, has higher incidence of retinal detachment
• Lattice degeneration: somewhat similar, but not associated with presenile cataracts or sheathing of retinal vessels
• Snail-track degeneration: somewhat similar, but not associated with presenile cataracts or sheathing of retinal vessels