Visual Acuity

on 12.6.08 with 0 comments



  • Sharpness of vision.

  • Depends upon resolving power:

  • Ability of the visual system to resolve 2 closely spaced dots.

  • Myopia (nearsightedness):

    • Image brought to focus in front of retina.
  • Hyperopia farsightedness):

    • Image brought to focus behind the retina.


  • Astigmatism:

  • Asymmetry of the cornea and/or lens.
  • Images of lines of circle appear blurred.
  • Corrected by cylindrical lens.

Category: Ophthalmology Notes

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