A myopic person prefers to remove his spectacles, while reading a book. Why ?

The far point of a myopic person is 80 cm. In front of the eye. What is the power of the lens required to enable him to see very distant objects clearly ? The person above prefers to remove his spectacles,while reaing a book.Explain,why.

A hypermetropic person prefers to remove his spectracles,while driving .Explain,why.

Why do aged person need spectacles for reading ?

A certain myopic person has a far point of 150 cm. If he is able to read a book at 25 cm, while wearing the glasses, is his near point less than 25 cm. ?

A myopic person has been using spectacles of power -1.0D for distant vision. During old age he also needs to use separate reading glass of power +2.0 dioptres. Explain what may have happened.

Which of the following lenses would you prefer to use while reading small letters in a diciionary?

Which of the following lenses would you prefer to use while reading small letters in a dicionary?