Normal Hydroxychloroquine Toxicity Screening
This 38-year-old woman had been taking hydroxychloroquine at a dose of 400 mg/d for 21 years for systemic lupus erythematosus. She had no visual complaints and was seen for routine retinopathy screening evaluations. Her height was 66 inches and her weight 210 pounds. She had no liver or renal disease. A: Her maculas had some drusen temporally, but no stigmata of hydroxychloroquine retinopathy were present. B: Fundus autofluorescence imaging was normal bilaterally. C: Relative paracentral scotomata were present on three consecutive 10-2 visual fields using a white target.