A detached retina happens when the retina peels away or detaches from its underlying layer of support tissue at the back of the eye. The retina is a thin layer of light-sensitive nerve cells at the back of the eye. We need a healthy retina to be able to see clearly.
At first, detachment might only affect a small part of the retina, but, without treatment, the whole retina may peel off, and vision will be lost from that eye.
A detached retina, or retinal detachment, usually only occurs in one eye. It is a medical emergency.
People with severe myopia, those with diabetes, patients who have had complicated cataract surgery, and anybody who has received a blow to the eye are all more susceptible to the condition.