# Retinal Detachment

URL: https://mohamedmohyudin.co.uk/conditions/retinal-detachment/
Last reviewed: 2026-08-13

## Quick answer

Retinal detachment is a sight-threatening emergency in which the light-sensitive retina separates from the back of the eye. Warning signs are a sudden increase in floaters, flashes of light, and a dark shadow or curtain spreading across the vision. Anyone with these symptoms needs same-day ophthalmology assessment, as prompt surgery gives the best outcome.

## Overview

Retinal detachment occurs when the retina — the light-sensitive layer at the back of the eye — separates from the underlying retinal pigment epithelium (RPE). Without urgent surgical reattachment, the detached retina loses its blood supply and photoreceptors die irreversibly. Retinal detachment is a medical emergency. Any patient experiencing a sudden onset of floaters, flashes of light, or a shadow or curtain across their vision should seek same-day ophthalmology assessment.

## Treatment

Retinal tears without detachment are treated prophylactically with laser retinopexy or cryotherapy. Retinal detachment requires surgery: pneumatic retinopexy (gas injection), scleral buckling, or pars plana vitrectomy. The approach depends on the extent and location of the detachment. Outcomes are significantly better when surgery is performed before the macula detaches.

## FAQs

### Is retinal laser treatment painful?

Numbing drops make the procedure tolerable for most people. You may feel brief stinging or pressure, and see flashes of light, but it is not usually painful.

### How effective is laser for a retinal tear?

Laser around a retinal tear creates scar tissue that welds the retina to the wall of the eye, greatly reducing the risk of detachment. It is a well-established and effective treatment when done promptly.

### What are the warning signs of retinal detachment?

The key warning signs are a sudden shower of new floaters, flashes of light at the edge of vision, and a dark shadow or curtain moving across the visual field, sometimes with sudden painless loss of vision. Any of these needs urgent, same-day ophthalmology assessment.

### Is retinal detachment an emergency?

Yes. Retinal detachment is an ocular emergency. Without prompt surgical reattachment the detached retina loses its blood supply and vision can be permanently lost. Outcomes are significantly better when surgery is performed before the central macula detaches, so same-day assessment is essential.

### How is retinal detachment treated?

Retinal tears without detachment can be sealed with laser or cryotherapy. An established detachment requires surgery — pneumatic retinopexy, scleral buckling, or vitrectomy — depending on its extent and location. The aim is to reattach the retina and preserve as much vision as possible.