Category: E

  • 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.  

  • 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.  

  • Exciting eye

    In sympathetic ophthalmia, the damaged eye, which is the source of sympathogenic influences.  

  • Eye deviation

    In eye muscle imbalance and “crossed eyes,” the abnormal visual axis of the eye that is not aligned.  

  • Eyach virus

    A European tick-borne coltivirus, implicated in some cases of meningitis and encephalitis.  

  • Exude

    To ooze out of tissues; said of a semisolid or fluid. The transfer of substances from inside a plant structure to its external surface or surrounding environment, typically by means of diffusion rather than through an opening, is referred to as ooze. While the verbs ‘ooze’ and ‘exude’ are largely interchangeable in everyday English, in…

  • Exuberant

    Excessive, as in the increased and excessive growth of granulation tissue or bacterial culture.