What term is used to describe the drooping of the upper eyelid?

The term used to describe the drooping of the upper eyelid is "ptosis." This condition can occur for various reasons, including muscle weakness, nerve damage, or specific medical conditions. It can affect one or both eyelids, leading to significant issues with vision and appearance depending on the severity. Recognizing ptosis is essential in clinical settings because it may be indicative of underlying health problems that require further investigation or treatment.

In contrast, lagophthalmos refers to the inability to close the eyelids fully, which can lead to exposure of the eye and potential dryness or damage. Strabismus involves misalignment of the eyes, which affects their coordination and can lead to double vision. Exophthalmia is the abnormal protrusion of the eyeball, often related to thyroid disease, and does not pertain to eyelid position. Understanding these distinctions aids in diagnosing and treating various ocular conditions effectively.