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Posterior precortical vitreous pocket
1Department of Ophthalmology, Gunma University, School of Medicine, Maebashi, Japan.
Archives of Ophthalmology (Chicago, Ill. : 1960)
|July 1, 1990
Summary
A posterior precortical vitreous pocket was consistently found in human eyes, even with posterior vitreous detachment. This anatomical finding offers new insights into vitreous structure and detachment dynamics.
Area of Science:
- Ophthalmology
- Anatomy
- Vitreoretinal studies
Background:
- The posterior vitreous cortex is a critical structure in the human eye.
- Understanding its anatomy is essential for comprehending vitreoretinal diseases.
Purpose of the Study:
- To investigate the presence and characteristics of a posterior precortical vitreous pocket.
- To determine the association of this pocket with posterior vitreous detachment (PVD).
Main Methods:
- Biomicroscopic examination of 84 human autopsy eyes.
- Fluorescein staining of the vitreous gel.
- Immersion of specimens in water.
Main Results:
- A posterior precortical vitreous pocket was identified anterior to the posterior fundus.
- This pocket was present in all eyes without PVD and in a majority of eyes with PVD.
- An oval defect in the premacular cortical vitreous was observed in eyes with PVD.
Conclusions:
- The posterior precortical vitreous pocket is a consistent anatomical feature.
- Its presence is independent of the type of vitreous liquefaction and is observed in various stages of PVD.