Question

An old person finds it difficult to see nearby objects comfortably and distinctly without
corrective eye glasses.
(a) What defect of vision is he suffering from? What is it?
(b) List two causes for the development of this defect.
(c) What kind of lens will be required to see clearly the nearby as well as distant objects? Give
reasons.
(d) How is the eye defect of old person differing from near-sightedness and far-sightedness?

Answer 1

(a) Hypermetropia
(b) 1) Due to ageing
2)Excess use of mobile phones
(c) Convex lens
(d)