A downward displacement or sagging of the lacrimal sac from its normal position.
From Greek 'dakryon' (tear) + 'kystis' (sac) + 'ptosis' (falling or dropping). The '-ptosis' suffix indicates a descent or prolapse of tissue.
As people age, gravity affects everything—even the tiny tear sac can sag! This word shows how doctors describe age-related changes in the tiniest structures of the eye.
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