Retina TodayGenetic Testing in the Retina Practice

🎓 Expert Commentary / Peer Perspective

Inherited retinal diseases (IRDs) collectively affect approximately 1 in 1,000 individuals and are frequently misdiagnosed. The article reviews available testing platforms, interpretation challenges, counseling considerations, and the expanding role of genetics in retinal disease management.

Clinical Considerations

• Diagnostic yield for suspected IRDs is reported at 65% to 70%, while approximately 51% of cases are initially misdiagnosed.
• Next-generation sequencing remains the primary testing approach, with whole-exome and whole-genome sequencing available for unresolved cases.
• Variants of uncertain significance require careful interpretation and should not independently guide diagnosis or treatment decisions.
• Genetic findings may inform prognosis, family screening, reproductive counseling, and eligibility for emerging therapies or clinical trials.

Practice Applications

• Consider genetic testing when inherited retinal disease is clinically suspected.
• Recognize limitations of variants classified as uncertain significance.
• Refer patients with suspected IRDs to genetics or IRD specialists when appropriate.
• Discuss counseling, privacy, and family implications before testing.