Refractive errors and disorders


Refractive error means that the shape of the eye does not bend light correctly, resulting in a blurred image. Refractive disorders are commonly treated using corrective lenses such as eyeglasses or contact lenses surgery (such as LASIK) can also be used to correct some refractive disorders. A refractive error can be diagnosed by an eye care professional during a routine eye examination. Testing usually consists of asking the patient to read a vision chart while testing an assortment of lenses to maximize a patient’s vision. Special imaging or other testing is rarely necessary.

  • Myopia
  • Hyperopia
  • Astigmatism
  • Presbyopia

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