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  2. Esophoria - Wikipedia

    en.wikipedia.org/wiki/Esophoria

    Esophoria is an eye condition involving inward deviation of the eye, usually due to extra-ocular muscle imbalance. It is a type of heterophoria. Cause

  3. Heterophoria - Wikipedia

    en.wikipedia.org/wiki/Heterophoria

    Heterophoria is an eye condition in which the directions that the eyes are pointing at rest position, when not performing binocular fusion, are not the same as each other, or, "not straight". This condition can be esophoria, where the eyes tend to cross inward in the absence of fusion; exophoria, in which they diverge; hyperphoria, in which one ...

  4. Esotropia - Wikipedia

    en.wikipedia.org/wiki/Esotropia

    Esotropia (from Greek eso 'inward' and trope 'a turning' [ 1 ]) is a form of strabismus in which one or both eyes turn inward. The condition can be constantly present, or occur intermittently, and can give the affected individual a "cross-eyed" appearance. [ 2 ] It is the opposite of exotropia and usually involves more severe axis deviation ...

  5. Exophoria - Wikipedia

    en.wikipedia.org/wiki/Exophoria

    Exophoria. Exophoria is a form of heterophoria in which there is a tendency of the eyes to deviate outward. [ 1 ] During examination, when the eyes are dissociated, the visual axes will appear to diverge away from one another. [ 2 ] The axis deviation in exophoria is usually mild compared with that of exotropia.

  6. Euphoria - Wikipedia

    en.wikipedia.org/wiki/Euphoria

    Eating, drinking, sexual activity and parenting invoke pleasure, an emotion that promotes repetition of these behaviors, are essential for survival. Euphoria, a feeling or state of intense excitement and happiness, is an amplification of pleasure, aspired to one's essential biological needs that are satisfied.

  7. Maddox rod - Wikipedia

    en.wikipedia.org/wiki/Maddox_rod

    The Maddox rod is a handheld instrument composed of red parallel plano convex cylinder lens, which refracts light rays so that a point source of light is seen as a line or streak of light. [2] Due to the optical properties, the streak of light is seen perpendicular to the axis of the cylinder. [3]

  8. Diplopia - Wikipedia

    en.wikipedia.org/wiki/Diplopia

    Specialty. Neurology, ophthalmology. Diplopia is the simultaneous perception of two images of a single object that may be displaced horizontally or vertically in relation to each other. [ 1 ] Also called double vision, it is a loss of visual focus under regular conditions, and is often voluntary.

  9. Eye contact - Wikipedia

    en.wikipedia.org/wiki/Eye_contact

    Strabismus, especially esophoria or exophoria, interferes with normal eye contact: a person whose eyes are not aligned usually makes full eye contact with one eye only, while the orientation of the other eye deviates slightly or more.