Refraction Exam 

Refraction Exam or Visual Acuaty Test is a part of a routine eye examination. This test tells your eye doctor exactly what prescription you need for your eye glasses or contact lenses.

Eye Doctor ask for a Refraction Exam to diagnose these conditions:

  • Astrigmatism
  • Hyperopia (Farsightedness)
  • Myopia (near sightedness)
  • Presbyopia.
  • Macular Degeneration
  • Retinal Vessel occlusion
  • Retinal Detachment
  • Retinitis pigmentosa

Testing is done one eye at atime. Your Doctor will ask you to read the smallest rows of letters that you can see. You will be seated on a device called phoropter on which lens will be changed asking you each time which lens is clearer.

How much does it take?

This test takes between 3 to 5 minutes.