Thu January 19, 2012 By:

The far point of a myopic person is 150 cm in front of the eye. What should be the nature and power of the corrective lens used to restore proper vision?

Expert Reply
Fri January 20, 2012
corrective lens sh be concave lens.
far point of myopic person is 150 cm. where as ideally it shud be infinity.
so u=?  object at infinity sh be focussed on retina.
  v=150 cm  for the lens  then this point will be taken as object for eye v will be - and the power of the lens will also be -0.66 D
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