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[Retinopathy secondary to treatment with Interferon beta-1a in a patient with multiple sclerosis]

J Mallada-Frechín1, I Abellán-Miralles, M L Alfaro-Beltra

  • 1Unidad de Neurología, Hospital General de Elda, 03600 Elda, Spain. mallada_jav@san.gva.es

Revista De Neurologia
|April 30, 2005
PubMed
Abstract

Insights

Visual disturbances, including cotton wool spots, were observed in a multiple sclerosis (MS) patient treated with subcutaneous interferon beta-1a. Symptoms resolved after discontinuing the interferon medication.

Area of Science:

  • Ophthalmology
  • Neurology
  • Immunology

Background:

  • Visual symptoms are common in multiple sclerosis (MS), but rarely linked to interferon treatment.
  • This report details the first case of retinopathy associated with subcutaneous interferon beta-1a in MS patients.

Observation:

  • A 30-year-old female with relapsing-remitting MS developed visual disorders 3 months into treatment with subcutaneous interferon beta-1a.
  • Ophthalmic examination revealed retinal cotton wool spots, indicative of microinfarctions.

Findings:

  • The patient's retinopathy resolved after cessation of interferon beta-1a therapy, with complete symptom remission.
  • This case mirrors previously reported interferon-induced retinopathy, typically associated with interferon alfa for hepatitis C and neoplasms.

Implications:

  • Physicians treating MS patients with interferons should be aware of the potential for retinopathy, although it appears less frequent than with interferon alfa.
  • Interferon-induced retinopathy is generally mild and reversible upon treatment withdrawal, attributed to immunocomplex deposition in retinal vasculature.

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