Abstract
Twenty-six patients with heart block were examined for evidence of chloroquine retinopathy. Detailed histories of chloroquine intake showed that 50% (13 of 26) of these patients were chloroquine abusers. Retinal changes typical of chloroquine retinopathy were seen in 53.8% (7 of 13) of the chronic chloroquine abusers. Patients with heart block of unknown cause should have their fundi examined so that signs of chloroquine retinopathy may be sought.
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Magulike, N., Ihenacho, H. & Ike, V. Chloroquine retinopathy in Nigerian patients with heart block. Eye 7, 591–593 (1993). https://doi.org/10.1038/eye.1993.128
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DOI: https://doi.org/10.1038/eye.1993.128
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