involutional ptosis

involutional ptosis: ptosis resulting from degeneration of the attachment of the levator palpebrae superioris muscle to the eyelid; it is usually caused by a defect in the aponeurosis (aponeurotic p.), but it can have other causes, such as fatty degeneration of the muscle. The term is often used synonymously with aponeurotic p.

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Ptosis (eyelid) — For other uses, see Ptosis (disambiguation). Not to be confused with proptosis. Ptosis of the eyelids Classification and external resources Ptosis of the left eyelid (unilateral ptosis) in an unidentified male from the 19th century … Wikipedia
aponeurogenic ptosis — aponeurotic ptosis the most common acquired ptosis, caused by a defect in the aponeurosis of the levator palpebrae superioris muscle. Cf. involutional p … Medical dictionary
List of cutaneous conditions — This is an incomplete list, which may never be able to satisfy particular standards for completeness. You can help by expanding it with reliably sourced entries. See also: Cutaneous conditions, Category:Cutaneous conditions, and ICD 10… … Wikipedia

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