Chronic inflammation of the cornea leading to pain, redness, and vision changes
To support a rating based on incapacitating episodes, the most direct evidence is medical records that document each clinic visit made specifically to treat your keratitis within the past 12 months. Those records should show the date of each visit, that the purpose was treatment rather than monitoring, and what treatment was provided — for example, a prescription for systemic immunosuppressants, an intravitreal injection, a laser procedure, or another surgical intervention.
If VA is evaluating your rating based on visual impairment instead, records showing measured loss of visual acuity, visual field defects, or other functional changes to the eye would be relevant under the separate visual impairment formulas.
Your own statements, and statements from people who know you, describing how your eye condition affects your ability to work or carry out daily activities can help round out the picture of severity. A VA or private eye specialist's examination findings that connect your keratitis to the documented visits and any measured vision loss can help tie the clinical record to the rating criteria.
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.
