U.C.E BIOLOGY 2003 PAPER 1 QN 34

a) What is long – sightedness?

b) State two causes of long – sightedness.

(i) …………………………………………………………………………………………………

(ii) ………………………………………………………………………………………………..

c) In the space below, draw light rays from an object into the eye to show long sightedness.

d) What is the effect of each of the following movements of the different parts of the eye?

(i) Contraction of the iris.

(ii) Relaxation of the cilliary muscle.

(iii) Shortening and thickening of the lens.

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