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JAMB Physics 2011 Question 25

Question 25

Lenses and Optical Instruments

When the human eye loses its power of accommodation, the defect is known as

  1. A.astigmatism
  2. B.long-sightedness
  3. C.short-sightedness
  4. D.presbyopia.
Show the answer and explanation

Answer: D (presbyopia.)

Explanation

With age the eye lens stiffens and can no longer change shape to focus near objects. This loss of accommodation is presbyopia.