It is usually apparent by direct inspection that the lower lid edge has turned inward. In cases due to infections and inflammations, treatment of the underlying cause usually improves or eliminates the entropion. Some mild cases of entropion can simply be treated by nightly taping of the lower lid to the cheek to pull the lid margin and lashes into the normal position. More severe cases, especially with significant risk of lash irritation to the eye, require surgery to restore the lid to its proper position. This can occur from neurologic, neuromuscular, or mechanical causes as well as from injuries or aging changes.
Ptosis can also occur following routine cataract surgery.
Ptosis may affect one or both eyes and can be very asymmetrical depending on the underlying cause. When a neurological disorder is present, symptoms typically include visual complaints independent of the droopy eyelid. Difficulty reading and driving are common complaints. Raising the entire brow with the muscles of the forehead and scalp may cause headaches and eyestrain as well. The most common treatment for ptosis is surgical, and there are a number of possible approaches.