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Related Experiment Videos

Posterior vitreous detachment: clinical correlations.

Sohan Singh Hayreh1, Jost B Jonas

  • 1Department of Ophthalmology, College of Medicine, University of Iowa, Iowa City, Iowa, USA. sohan-hayreh@uiowa.edu

Ophthalmologica. Journal International D'Ophtalmologie. International Journal of Ophthalmology. Zeitschrift Fur Augenheilkunde
|August 31, 2004
PubMed
Summary

Posterior vitreous detachment (PVD) is more common in older individuals, females, and those with myopia. PVD is also linked to surgical aphakia and occurs more often bilaterally.

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Area of Science:

  • Ophthalmology
  • Retinal Diseases
  • Vitreoretinal Interface

Background:

  • Posterior vitreous detachment (PVD) is a common age-related condition affecting the vitreoretinal interface.
  • Understanding the prevalence and associated factors of PVD is crucial for managing associated ocular pathologies.
  • Previous studies on PVD have been limited by smaller sample sizes and retrospective designs.

Purpose of the Study:

  • To determine the frequency of posterior vitreous detachment (PVD).
  • To identify factors primarily and secondarily associated with PVD.
  • To correlate PVD presence with demographic and ophthalmic characteristics.

Main Methods:

  • A prospective observational cohort study involving 1,481 subjects (mean age 63.45 years).

Related Experiment Videos

  • Assessment of PVD using indirect and direct ophthalmoscopy, fundus biomicroscopy, and Hruby lens.
  • Analysis of associations between PVD and age, refractive error, cataract surgery, diabetes, hypertension, ocular trauma, vitreous hemorrhage, retinal disorders, AION, and glaucoma.

    • Main Results:

    • PVD occurrence significantly correlated with increasing age, myopic refractive error, female gender, and surgical aphakia (all p < 0.001).
    • PVD was significantly more frequent bilaterally than unilaterally (p < 0.001), with unilateral PVD patients being younger.
    • PVD was less frequent in nonarteritic anterior ischemic optic neuropathy (AION) (p = 0.038) and showed a trend towards lower frequency in diabetic retinopathy and neovascularization.

    Conclusions:

    • This large prospective study confirms previous findings on PVD prevalence and associated factors.
    • New insights into the pathophysiology of PVD and its role in retinal and optic disc lesions are provided.
    • Data supports the understanding of PVD as a significant factor in various ophthalmic conditions.