Vision Defects and Eye Optics

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Multiple Choice

A person cannot see object clearly that are closed that $2m$ and father than $4m$ . To correct the eye vision the person will use :

  1. Bifocal lenses of power $0.5D$ and $0.25D$
  2. Bifocal lenses of power $0.25 D$ and $3.5D$
  3. Bifocal lenses of power $0.5 D$ and $4.0 D$
  4. Bifocal lenses of power $4.0 D$ and $0.5 D$
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