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Related Experiment Videos

Vitrectomy in asteroid hyalosis.

R M Feist1, R E Morris, C D Witherspoon

  • 1Department of Ophthalmology, UIC Eye Center, University of Illinois, Chicago College of Medicine.

Retina (Philadelphia, Pa.)
|January 1, 1990
PubMed
Summary
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Vitrectomy can aid in diagnosing posterior segment diseases obscured by asteroid hyalosis (AH). While generally safe, pars plana vitrectomy (PPV) for AH should follow less invasive methods due to potential complications.

Area of Science:

  • Ophthalmology
  • Retinal Diseases
  • Vitreous Disorders

Background:

  • Asteroid hyalosis (AH) involves vitreous calcium-lipid deposits, affecting up to 0.9% of the population.
  • Dense AH can obscure fundus details, complicating diagnosis of underlying posterior segment conditions.
  • Visual loss in AH patients necessitates careful diagnostic evaluation.

Purpose of the Study:

  • To evaluate the diagnostic and therapeutic utility of vitrectomy in patients with dense asteroid hyalosis and unexplained visual loss.
  • To identify underlying posterior segment diseases masked by asteroid hyalosis.

Main Methods:

  • Retrospective review of 7 cases of dense asteroid hyalosis in 6 patients undergoing pars plana vitrectomy (PPV).
  • Analysis of pre- and post-operative visual acuity and diagnostic findings.

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  • Assessment of surgical complications.

    • Main Results:

    • Vitrectomy facilitated diagnosis of conditions including age-related macular degeneration (ARMD) and proliferative diabetic retinopathy.
    • No major surgical complications were reported in this series.
    • Diagnoses included ARMD (2 eyes), ARMD with epiretinal membrane (1 eye), and proliferative diabetic retinopathy (1 eye).

    Conclusions:

    • Pars plana vitrectomy (PPV) can be a valuable tool for diagnosing posterior segment diseases in the presence of dense asteroid hyalosis.
    • Vitrectomy for AH should be considered when less invasive diagnostic and therapeutic options are exhausted.
    • Potential for serious complications necessitates careful patient selection and consideration of risks versus benefits.