A person cannot see the objects distinctly, when placed beyond 2 m.
(a) Identify the eye defect.
(b) Give two reasons for this defect.
© Calculate the power and nature of the lens
he should be using to see the distant objects clearly. . ,
(d) Draw the ray diagrams for the defective and
the corrected eye.
(a) Myopia.
(b) (i) Either the eyeball is longer than normal or (ii) The maximum focal length (due to excessive curvature of the eye lens) of the lens is insufficient to produce a clearly formed image on the retina.
© P =1/f= 1/-2 = -0.5D
(d) The diagrams are as shown:
