Question

Man A has the defect of vision due to which he cannot see the nearby objects clearly
(though he can see the distant objects clearly). On the other hand, man B has a defect of
vision due to which he cannot see the distant objects clearly (though) he can see the nearby
objects clearly). The defect in man A can be corrected by using spectacles containing lenses
C whereas the defect in man B can be corrected by using spectacles containing lenses D.
a. Name the defect of vision in man A and man B.
b. What type of lenses are C and D?
c. List the precautions to be taken other than wearing spectacles

Answer 1

Answer:

Farsightedness, or hyperopia, is the inability to see close objects clearly while distant objects may be clear. A farsighted eye does not converge sufficient rays from a close object to make the rays meet on the retina. Less diverging rays from a distant object can be converged for a clear image.