Glossary

Author: Glossary

  • Wear facet

    A line or plane worn on a tooth surface by attrition.  

  • Fabella

    Fibrocartilage or bone that sometimes develops in the head of the gastrocnemius muscle.  

  • Eyewash

    Any suitable liquid used to rinse the eyes (e.g., sterile physiological saline or sterile water).  

  • Eye protection

    Goggles, plastic or glass face masks, or shatterproof glasses to prevent injury to the eye during work or play.  

  • Eye muscle imbalance

    A pathological condition of the extraocular muscles of one or both eyes. It causes the eyes to be misaligned in one or more axes.  

  • Eyelid closure reflex

    Contraction of the orbicularis palpebrarum muscle with closure of lids resulting from percussion above the supraorbital nerve.  

  • Fused eyelid

    A congenital anomaly resulting from failure of the fetal eyelids to separate.  

  • Eye-gaze communicator

    An electronic device that allows a person to control a computer by looking at words or commands on a video screen. A very low intensity light shines into one of the user’s eyes. A television camera picks up reflections from the cornea and retina. As the direction of the person’s gaze moves, the relative position…

  • Eyecup

    The optic vesicle, an evagination of the embryonic brain from which the retina develops. A device shaped like a cup that covers the eye, designed for cleaning or administering medicine to the visible part of the eyeball.  

  • Eye contact

    The meeting of the gaze of two persons; a direct look into the eyes of another.