Scarring or clouding of the cornea causing vision impairment
To support a rating based on incapacitating episodes, your records need to show the number of treatment visits for your eye condition within a 12-month period and confirm that each visit was specifically for treatment rather than routine follow-up. Clinic notes, procedure records, pharmacy records for systemic immunosuppressants or biologic agents, and surgical or laser treatment reports can all document those visits and tie them to your condition.
To support a rating based on visual impairment, records showing measured visual acuity, visual field loss, or other findings addressed under the eye-specific diagnostic codes in 38 CFR 4.75–4.78 would be relevant. An eye examination that records best-corrected visual acuity in each eye and documents any field defects or other functional losses is particularly useful.
Statements from you or people who know you about how your eye condition affects your ability to work, drive, read, or carry out daily tasks can help VA understand the real-world impact of your symptoms, especially when combined with objective clinical findings.
Conditions that are often caused or made worse by this one. If you have any of these, they may be claimable as secondary service connection.