Question

Write the function of the human eye and label parts of the figure given below.

Answer 1

1. Double convex transparent crystalline lens: It provides small adjustments of the focal length to focus the image. This lens creates a real and inverted image of an object on the screen inside the eye.
2. Optic nerve: The sensitive cells on the retina get excited when light falls on them and generate electric signals. The optic nerve carries these signals to the brain.
3. Retina: It is the screen inside the human eye which contains light-sensitive cells. Image of an object is formed on this screen.
4. Pupil: The pupil contracts or widens depending on the intensity of light incident on the eye.