---
title: When is posterior vitreous detachment dangerous?
description: "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…"
url: "https://bluefinvision.com/knowledge-base/topics/conditions-diseases/when-is-posterior-vitreous-detachment-dangerous/"
updated: "2025-12-11"
category: "Conditions & Diseases"
---

# When is posterior vitreous detachment dangerous?

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](https://bluefinvision.com/vitreoretinal-surgery/) page, with more detail in the article [what is vitrectomy surgery?](https://bluefinvision.com/blog/what-is-vitrectomy-surgery/).