Question

1. what is the function of the lens of an eye?

o to collect the light that enters the eye
o to send nerve signals through the optic nerve
o to control the amount of light that enters the eye
o to focus the light onto the retina

Explanation:

The lens of the eye works by adjusting its shape to focus light onto the retina. This process is called accommodation. The cornea also helps in focusing light, but the lens fine - tunes the focus for objects at different distances.

• The option "to collect the light that enters the eye" is mainly the function of the cornea and the pupil (to some extent).
• The option "to send nerve signals through the optic nerve" is the function of the retinal ganglion cells.
• The option "to control the amount of light that enters the eye" is the function of the iris (which controls the size of the pupil).

Answer:

to focus the light onto the retina