---
title: What are symptoms of retinal vein occlusion?
description: "[Retinal vein occlusion](https://bluefinvision.com/blog/what-is-retinal-vein-occlusion/) occurs when a vein draining the retina becomes blocked. Symptoms vary with severity and location. ## Central versus branch vein occlusion Central occlusion affects the whole retina, while branch occlusion involves a smaller section. Both can reduce…"
url: "https://bluefinvision.com/knowledge-base/topics/symptoms-signs/what-are-symptoms-of-retinal-vein-occlusion/"
updated: "2026-01-22"
category: "Symptoms & Signs"
---

# What are symptoms of retinal vein occlusion?

[Retinal vein occlusion](https://bluefinvision.com/blog/what-is-retinal-vein-occlusion/) occurs when a vein draining the retina becomes blocked. Symptoms vary with severity and location.

## Central versus branch vein occlusion

Central occlusion affects the whole retina, while branch occlusion involves a smaller section. Both can reduce vision suddenly or over hours.

- Blurred or distorted central vision
- Patchy missing areas in the visual field
- Sometimes discovered on routine examination with few symptoms
- Usually painless, which can delay seeking help

## Associated features and risk factors

Swelling at the macula and fragile new vessels may later develop. Cardiovascular health strongly influences risk.

- Linked with high blood pressure, diabetes, and raised cholesterol
- Some patients notice floaters from retinal bleeding
- Eye injections and laser may be needed to protect vision
- Medical evaluation for stroke and heart risk is recommended