A certain man has a far point of 150 cm.
(a) What power must contact lenses have to allow him to see distant objects clearly?
(b) If he is able to read a newspaper at 25 cm while wearing his contacts, is his near point less than 25 cm? If so, what is it?
(c) Give an approximation of the man’s age, based on the normal rate of recession of the near point.