A) Lens
B) Vitreous humour
C) Aqueous humour
D) Pupil
Correct Answer: D
Solution :
Pupil is not considered as a refractive medium of the eye. The eye contains various refractive media within it which effectively bend and refract the incoming light, so that it is all focused upon a certain point on the retina. This refraction can only occur with the use of refractive media and in some cases refractive media which can change their respective refractive power (the lens). The refractive media in the eye are the cornea, the aqueous humour or, the lens and the vitreous humour.
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