Posterior vitreous detachment: Difference between revisions
(Created page with "==Background== *Separation of posterior vitreous from the retina, as a result of vitreous degeneration and shrinkage *Age-related event (prevalence): **50-59 yrs = 24% **80-90 yr...") |
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***Monocular, repeated, brief flashes of white light in the peripheral visual field | ***Monocular, repeated, brief flashes of white light in the peripheral visual field | ||
***related to traction on the peripheral retina from areas of tightly adherent vitreous jelly | ***related to traction on the peripheral retina from areas of tightly adherent vitreous jelly | ||
==See Also== | |||
[[Acute Onset Flashers and Floaters]] | |||
==Source== | |||
Revision as of 18:23, 25 September 2012
Background
- Separation of posterior vitreous from the retina, as a result of vitreous degeneration
and shrinkage
- Age-related event (prevalence):
- 50-59 yrs = 24%
- 80-90 yrs = 87
- Risk factors
- myopia
- trauma
- intraocular inflammation
- in the majority of cases PVD is benign
- in acute phase, concern is for causing retinal tear, which can lead to retinal detachment
- Prompt diagnosis and surgical treatment of retinal detachment can prevent impending
vision loss or can restore vision
Diagnosis
- May be asymptomatic
- More frequently:
- Floaters
- A sensation of gray or dark spots moving in the visual field
- Caused either by light bending at the interface of fluid pockets in the vitreous jelly or cells located within the vitreous
- May persist for months to years
- Flashes
- Monocular, repeated, brief flashes of white light in the peripheral visual field
- related to traction on the peripheral retina from areas of tightly adherent vitreous jelly
- Floaters
See Also
Acute Onset Flashers and Floaters