---
title: What causes a black spot in vision?
description: "A black spot in vision is called a scotoma. It can be small or large, central or off to one side. ## Retinal and macular causes Damage to the light-sensitive retina often produces fixed dark areas. The location depends on…"
url: "https://bluefinvision.com/knowledge-base/topics/symptoms-signs/what-causes-a-black-spot-in-vision/"
updated: "2025-12-31"
category: "Symptoms & Signs"
---

# What causes a black spot in vision?

A black spot in vision is called a scotoma. It can be small or large, central or off to one side.

## Retinal and macular causes

Damage to the light-sensitive retina often produces fixed dark areas. The location depends on which part of the retina is affected.

- Macular degeneration causing central dark or blurred patches
- Macular hole or scar
- Diabetic retinopathy with localised bleeding or swelling
- Branch retinal vein or artery occlusions

## Other potential causes

Migraine aura and neurological problems can also create black or shimmering areas. These often move or change over minutes.

- Transient scotomas before or during migraine headaches
- Visual pathway damage from stroke or tumours
- Optic neuritis causing patchy dim areas
- Any new persistent black spot should be assessed promptly