Corneal ulcer

A 24-year-old woman was admitted with a history of a white spot on the right cornea and increasing discomfort. On examination, her vision was 6/36 on the right and 6/9 on the left. She had a corneal ulcer measuring 5.5 × 2 mm on her right cornea. A small localized area of scarring was present lateral to where the defect was present. There was a +1 cell reaction in her right anterior chamber. She had a history of bilateral anterior uveitis. Corneal sensation was normal in both eyes. There were early bilateral posterior subcapsular cataracts. The patient had normal C-reactive protein, rheumatoid factor, anti-nuclear antibody, extractable nuclear antigen, syphilis, and hepatitis B and C serology.  In the 3rd week of admission, she complained of a headache and was found to be mildly tachycardic. She was apyrexial with no reported malaise. A urinary dipstick analysis was performed.