👉 Blepharolejeunea is a term in anatomy that describes the condition where the eyelid is too tight or too loose, leading to difficulty opening and closing the eyelids. It's most commonly seen in people with an overactive or underactive eyelid muscle. This can be caused by conditions such as cataracts (focal degeneration of the eye lens), which may cause a misalignment between the eye's two eyes, resulting in drooping eyelids.