Retina — Emergency
The retina lines the back of the eye like wallpaper. If it tears, fluid can pass beneath it and lift it away — an emergency. On the left, the cross-section of the eye; on the right, what you might perceive.
Cross-section of the eye
What you perceive
Illustration — symptoms vary from one person to another.
Educational diagram — Dr Moïse Tourabaly, ophthalmologist. For information purposes; does not replace an examination.