Terms rehab final 1

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elementsninja
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306335
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Terms rehab final 1
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2015-08-25 17:49:10
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Terms rehab final 1
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  1. Nearsightedness
    Light rays entering eye come together before they reach the retina Requires concave lens- thicker at edges and thinner in middleGenerally easy to correct with lenses
    Myopia
  2. refers to an anopia affecting a quarter of the field of vision.
    quadrantanopsia
  3. Farsightedness Light rays enter eye and fail to come together to a focused point by the time they reach retinaRays of light/images fall behind the retinaMore noticeable at middle age…children alsoRequires convex lens- thicker at center and thinner at edges
    Presbyopia/Hyperopia
  4. Double vision Results from imbalance of muscles that control eye movements Common cause is CVA and TBI
    diplopia
  5. Involuntary, rapid, rhythmic movement Can be horizontal, vertical, rotary, or mixed
    nystagmus
  6. crossed eyed/wall eyed-Occurs when eyes aren’t straight or properly aligned.one eye or both turn in, out, up, or downEyes may wanderTreated with eye glasses, drops, surgery, eye exercises Miss alignment of two eyes in relation to one another
    Strabismus -crossed eyed/wall eyed
  7. 20/20
    is not perfect vision, but standard vision
  8. means that even with regular glasses, contact lenses, medicine, or surgery, people find everyday tasks difficult to do. Reading the mail, shopping, cooking, seeing the TV, and writing can seem challenging.
    Low vision
  9. best corrected visual acuity is 20/200, or the person's visual field is 20 degrees or less.
    legally blind
  10. voluntary  rapid movement of the eye between fixation points.
    saccades
  11. refers to the pattern of fixations and saccades while an individual is examining visual stimuli.
    scanning
  12. sharpness of vision, measured by the ability to discern letters or numbers at a given distance according to a fixed standard.
    visual acuity
  13. The ability to recognize a form or object even when the whole picture of it isn’t available.
    visual closure
  14. The ability to know that a form or shape is the same, even if it has
    been rotated, made smaller/larger, or observed from up close or far
    away.
    form constancy
  15. The ability to locate something in a cluttered or busy background.
    figure ground
  16. The ability to determine differences or similarities in objects or forms based on size, color, shape, etc…
    visual discrimination
  17. Understanding the relationships of objects within the environment.
    Visual Spatial Relations
  18. the acquisition of an internal awareness of the body and the relationship of body parts to one another; a sensorimotor performance component of occupational therapy.
    body schema
  19. Ideation - knowing what to do ● Motor planning - directing and organising the movement ● Execution - carrying out the motor plan
    praxis

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