Other Terms of the Eyes and Ears

Accommodation

Ability of the eye to change focus from distant to near

Cerumen

Earwax

Depth perception

The ability to see objects in three dimensions

Dilate

Make the opening of the pupil larger

Equilibrium

The state of balance

Lacrimation

Secretion of tears

Prosthesis

Artificial substitute for a diseased or missing body part

Ptosis (the "P" is silent)

Drooping of the upper eyelid

Snellen chart

Eye-test chart

Tinnitus

Ringing or buzzing sound in the ears

Visual acuity

The ability to identify letters and numbers at a distance