Posterior vitreous detachment Flashcards
What is posterior vitreous detachment?
The separation of the vitreous membrane from the retina.
What causes posterior vitreous detachment?
Natural changes to the vitreous fluid of the eye with ageing.
Is posterior vitreous detachment a painful condition?
No, it does not cause any pain or loss of vision.
What serious complications can arise from posterior vitreous detachment?
Tears and detachment of the retina.
What percentage of people over 65 experience posterior vitreous detachment?
Over 75%.
Which gender is more affected by posterior vitreous detachment?
Females.
What happens to the vitreous fluid in the eye as people age?
It becomes less viscous and does not hold its shape as well.
What risk factors increase the likelihood of developing posterior vitreous detachment?
Aging and being highly myopic (near-sighted).
What are common symptoms of posterior vitreous detachment?
Sudden floaters, flashes of light, blurred vision, cobweb across vision, dark curtain descending.
What does the appearance of a dark curtain in vision indicate?
Possible retinal detachment.
What is a Weiss ring?
A sign of posterior vitreous detachment observed on ophthalmoscopy.
How soon should patients with suspected vitreous detachment be examined by an ophthalmologist?
Within 24 hours.
What is the typical management for posterior vitreous detachment?
No treatment is necessary; symptoms improve over around 6 months.
What treatment is required if there is an associated retinal tear or detachment?
Surgery to fix the retinal issue.
