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Related Experiment Videos

Delayed-onset chloroquine retinopathy.

M Ehrenfeld, R Nesher, S Merin

    The British Journal of Ophthalmology
    |April 1, 1986
    PubMed
    Summary
    This summary is machine-generated.

    Delayed-onset chloroquine retinopathy can occur years after stopping the drug. Continued monitoring with eye exams is crucial for patients at risk, even after treatment ends.

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    Area of Science:

    • Ophthalmology
    • Rheumatology
    • Pharmacology

    Background:

    • Chloroquine is a medication used to treat rheumatoid arthritis.
    • Long-term chloroquine use can lead to retinopathy, a condition affecting the retina.
    • Delayed-onset chloroquine retinopathy (DOCR) is a known but infrequent complication.

    Observation:

    • A patient developed DOCR seven years after discontinuing chloroquine therapy.
    • The total cumulative dose of chloroquine was 730 g.
    • Visual functions showed progressive deterioration post-diagnosis.

    Findings:

    • DOCR can manifest significantly after treatment cessation.
    • The severity of visual impairment may continue to worsen over time.
    • Rheumatoid arthritis patients are susceptible to this delayed ocular toxicity.

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    Implications:

    • Patients treated with chloroquine require long-term ophthalmic surveillance.
    • Periodic eye examinations, including ophthalmoscopy and functional tests (e.g., electroretinography and visual fields), are recommended.
    • Early detection and continued monitoring are vital for managing patients at risk of DOCR.