Ptosis is the medical term for drooping of the upper eyelid, a condition that may affect one of both eyes. When the edge of the upper eyelid falls, it may block the upper field of your vision. Symptoms of ptosis include a decreased ability to keep your eyes open, eye strain and eyebrow fatigue from the increased effort needed to raise your eyelids, and fatigue – especially when reading. Acquired ptosis is treated surgically, with the specific operation based on the severity of the ptosis and the strength of the levator muscle. Surgery is designed to reattach the stretched muscle to its normal location.
Ectropion is the medical term used to describe an abnormal lower eyelid that turns outward and no longer touches the eye. As a result, the conjunctiva (the mucous membrane that lines the eyelid) may become red and exposed. This condition usually involves one or both lower eyelids but rarely, may affect the upper eyelid(s). If the ectropion is due to laxity of the eyelid’s supporting structures, it is best treated surgically. Depending on the cause, surgery can reposition the eyelid back to its normal position against the eye.
Entropion is a condition in which an eyelid turns inward, rubbing against the eye, making it red, irritated and sensitive to light and wind. If it is not treated, the condition can lead to excessive tearing, crusting of the eyelid, mucous discharge, and irritation of the eye. A serious inflammation could result in damage to the eye. There are a number of surgical techniques for successfully treating entropion and each surgeon will have a preferred method. The usual treatment for entropion involves tightening of the eyelid and its attachments to restore the lid to its normal position.