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Related Experiment Videos

Retinal function abnormalities in membranoproliferative glomerulonephritis type II

R Y Kim1, E G Faktorovich, C Y Kuo

  • 1Department of Ophthalmology, University of California, San Francisco 94143-0730, USA. ryk@itsa.ucsf.edu

American Journal of Ophthalmology
|May 1, 1997
PubMed
Summary
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Membranoproliferative glomerulonephritis type II retinopathy can cause vision problems. This study found measurable retinal function abnormalities in symptomatic patients, including visual field and color vision deficits.

Area of Science:

  • Ophthalmology
  • Nephrology
  • Medical Research

Background:

  • Membranoproliferative glomerulonephritis type II (MPGN II) is a rare kidney disease.
  • MPGN II retinopathy is characterized by drusen-like deposits and retinal pigment epithelial disturbances.
  • The impact of MPGN II on retinal function requires further characterization.

Observation:

  • Three adult patients with MPGN II underwent comprehensive psychophysical and electrophysiologic retinal assessments.
  • Symptomatic patients exhibited visual field defects, impaired color vision, prolonged dark adaptation, and abnormal electroretinography (ERG) and electro-oculography (EOG).
  • An asymptomatic patient with milder fundus changes showed normal visual function.

Findings:

  • MPGN II retinopathy is associated with distinct retinal abnormalities.

Related Experiment Videos

  • Symptomatic individuals demonstrated delayed dark-adapted dim and bright flash ERG responses.
  • The electro-oculogram was abnormal in the most severely affected patient.

    • Implications:

    • MPGN II retinopathy can lead to significant, measurable visual dysfunction.
    • Ophthalmic evaluation is important for patients with MPGN II.
    • These findings highlight the systemic impact of MPGN II on ocular health.