Question

An old person find it difficult to see nearby objects comfortably and distinctly without corrective eye glasses. List two causes for the development of this defect?

Answer 1

The old man was affected by presbyopia.it was corrected by the biconcave(combination of concave and convex)
*by ageing
*reading books and using cell phones

Answer 2

According to the data mentioned in the question that,

An old person find it difficult to see nearby objects comfortably and distinctly without corrective eye glasses.

The main reasons behind this eye problem are:

1)It's generally happens during the aging process of the human.

2) Excessive pressure on the eyes can also occur this problem.

3)If we don't use proper prescription glasses,this problem will surely happen.