---
title: Coats disease
description: "Coats disease is an idiopathic retinal vascular disorder with telangiectatic vessels and exudation, typically in young males. It most often affects one eye. ## Presentation Children may present with visual loss or a white pupil. - Yellow subretinal exudates and…"
url: "https://bluefinvision.com/knowledge-base/topics/conditions-diseases/coats-disease/"
updated: "2025-12-16"
category: "Conditions & Diseases"
---

# Coats disease

Coats disease is an idiopathic retinal vascular disorder with telangiectatic vessels and exudation, typically in young males. It most often affects one eye.

## Presentation

Children may present with visual loss or a white pupil.

- Yellow subretinal exudates and leaking telangiectatic vessels
- Progressive exudative retinal detachment if untreated
- Usually unilateral with no systemic associations in classic Coats disease
- Must be differentiated from retinoblastoma

## Treatment

Therapy aims to ablate abnormal vessels and preserve structure.

- Cryotherapy or laser photocoagulation to telangiectasia
- Intravitreal anti-VEGF or steroids in selected cases
- Vitrectomy or drainage surgery for advanced detachment
- Long-term monitoring for recurrence or neovascular glaucoma