ptosis

(noun)

Drooping of the eyelid.

Related Terms

Examples of ptosis in the following topics:

  • Horner's Syndrome

    • Horner's syndrome, also known as oculosympathetic palsy, is a combination of drooping of the eyelid (ptosis) and constriction of the pupil (miosis) on one side of the face, accompanied by decreased sweating of the face on the same side .
    • Partial ptosis: drooping of the upper eyelid from loss of sympathetic innervation to the superior tarsal muscle (Müller's muscle)

  • Nephroptosis (Floating Kidney)

    • Nephroptosis, also called floating kidney or renal ptosis, is an abnormal condition in which the kidney drops down into the pelvis when the patient stands up.

  • Botulism

    • Note the bilateral total ophthalmoplegia with ptosis in the left image and the dilated, fixed pupils in the right image.