Case report reveals genetic predisposition to hydroxychloroquine maculopathy, suggesting need for genetic testing.
This patient developed bull's eye maculopathy after limited exposure to HCQ. Genetic testing revealed an underlying cone-rod dystrophy, which likely increased her susceptibility to HCQ toxicity. This case emphasizes the importance of diagnostic work-up for unusually early-onset HCQ maculopathy, which may include genetic testing.
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Donovan et al. (2026) studied this question.
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