Posterior vitreous detachment (PVD) is a common age-related change that is usually benign. It becomes dangerous when traction on the retina leads to tears or detachment.
Warning Symptoms
Sudden onset of many new floaters, flashes of light, or a curtain or shadow in the visual field can indicate a retinal tear or detachment associated with PVD. These symptoms require urgent examination.
- Single long-standing floater is usually less concerning
- Rapid increase in floaters or persistent flashes is a red flag
- Any loss of peripheral vision needs immediate attention
Follow-Up
Even if the initial examination is reassuring, a short-term follow-up may be advised because tears can appear after the first assessment as the vitreous continues to move.
Further Information
General information on PVD is included in the knowledge base entry ‘what is posterior vitreous detachment?’, and surgery for complications is discussed on the vitreoretinal surgery page, with more detail in the article what is vitrectomy surgery?.
