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Name the part of the eye, which is involved in focusing light on the retina?

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Name the part of the eye, which is involved in focusing light on the retina?

(a) Sclera

(b) Iris

(c) Cornea

(d) Ciliary muscles

The question was posed to me during an internship interview.

This intriguing question comes from Sensory Organs topic in chapter Human Physiology of Life Sciences

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Right option is (c) Cornea

Easiest explanation: Fibrous tunic is composed of anterior cornea and posterior sclera. It is a surface coating of an eyeball. Transparent cornea covered colored iris and it helps in focussing light on the retina.

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