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Variations of Posterior Vitreous Detachment

Overview
Journal Br J Ophthalmol
Specialty Ophthalmology
Date 1997 Jul 1
PMID 9290361
Citations 16
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Abstract

Aims: To identify variations in posterior vitreous detachment (PVD) and establish a clinical classification system for PVD.

Methods: 400 consecutive eyes were examined using biomicroscopy and vitreous photography and classified the PVD variations-complete PVD with collapse, complete PVD without collapse, partial PVD with thickened posterior vitreous cortex (TPVC), or partial PVD without TPVC.

Results: In each PVD type, the most frequently seen ocular pathologies were as follows: in complete PVD with collapse (186 eyes), age related changes without vitreoretinal diseases (77 eyes, 41.4%) and high myopia (55 eyes, 29.6%); in complete PVD without collapse (39 eyes), uveitis (23 eyes, 59.0%) and central retinal vein occlusions (8 eyes, 20.5%); in partial PVD with TPVC (64 eyes), proliferative diabetic retinopathy (30 eyes, 46.9%); and inpartial PVD without TPVC (111 eyes), age related changes without vitreoretinal diseases (62 eyes, 55.9%). This PVD categorisation was significantly associated with the prevalence of each vitreoretinal disease (p < 0.0001, chi 2 test on contingency table).

Conclusions: PVD variations can be classified into four types, which is clinically useful because each type corresponds well to specific vitreoretinal changes.

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