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[Vitreous and macular diseases].

Shoji Kishi1

  • 1Department of Ophthalmology, Gunma University Postgraduate School of Medicine.

Nippon Ganka Gakkai Zasshi
|January 22, 2004
PubMed
Summary

The retina maintains vitreous integrity and metabolism throughout life. Vitreous cortex contraction can cause macular holes and diabetic macular edema, but vitrectomy may offer effective treatment.

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Area of Science:

  • Ophthalmology
  • Vitreoretinal research
  • Biochemistry

Context:

  • The vitreous humor's role in ocular health and disease is complex.
  • Age-related changes in vitreous composition are not fully understood.
  • The structural contribution of the vitreous to macular diseases requires further elucidation.

Purpose:

  • Investigate vitreous origin, morphology, metabolism, and regeneration.
  • Clarify the vitreous's role in vitreomacular diseases.
  • Examine the vitreous cortex's involvement in premacular membranes and macular holes.

Summary:

  • Vitreous liquefaction requires a healthy retina; hyaluronic acid and collagen type II precursor levels decrease with age in women.
  • A posterior precortical vitreous pocket and intravitreal fibrous membranes were identified.
  • Premacular vitreous cortex contraction is implicated in premacular membrane formation and macular hole development.
  • Diabetic macular edema can result from premacular vitreous cortex traction, with vitrectomy showing potential efficacy.

Impact:

  • Provides insights into vitreous metabolism and age-related changes.
  • Identifies the premacular vitreous cortex as a key structure in macular pathology.
  • Suggests vitrectomy as a therapeutic option for specific macular conditions, including diabetic macular edema.

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