Autoimmune retinopathy: a review and summary

Area of Science:

• Ophthalmology
• Immunology
• Retinal Diseases

Background:

• Autoimmune retinopathy (AIR) comprises three primary forms: cancer-associated retinopathy (CAR), melanoma-associated retinopathy (MAR), and nonneoplastic autoimmune retinopathy (npAIR).
• AIR can also arise secondary to other ocular conditions like retinitis pigmentosa, ocular trauma, birdshot retinopathy, acute zonal occult outer retinopathy (AZOOR), and multiple evanescent white dot syndrome (MEWDS).

Observation:

• Despite diverse origins, various forms of AIR share common clinical manifestations.
• A notable characteristic is the absence of a uniform set of anti-retinal antibodies across all patients.
• Patients often exhibit a broad spectrum of anti-retinal antibody activity, frequently identifying three to six distinct antibodies via immunoblots.

Findings:

• Clinical presentation typically includes sudden-onset photopsia (flashing lights) and rapid visual deterioration.
• Electroretinograms (ERGs) are consistently abnormal in affected individuals.
• Pathological findings often reveal panretinal degeneration, typically without pigment deposits.

Implications:

• Understanding the commonalities and variations in AIR is crucial for accurate diagnosis and management.
• Further research into the specific anti-retinal antibodies involved may elucidate pathogenic mechanisms.
• Improved diagnostic markers and targeted therapies are needed for patients with autoimmune retinopathy.