What job does the lens do in the eye?

Answer 1

It focuses the image by bending the light to strike the retina correctly. This is also called refraction.

Interesting:

Like a camera lens focuses light onto a piece of film with the image upside down, the image that is focused on our retina is also turned upside down. Our nerves from the eyes send the upside down picture to the brain and the brain knows to flip the image and perceive it right side up.

Answer 2

The lens in your eye focuses light on the retina.
It concentrates the light. This is one of the prerequisites for being able to see.
The lens of the eye focuses the incoming light usually on a region in the back of the eye called the fovea centralis. When people are near-sighted the light is focused behind the fovea centralis and when people are far-sighted the light is focused in front of the fovea centralis.

Answer 3

i think it focuses the incoming light, so that a sharp, clear image appears on the retina. short-sightedness and long-sightedness make your vision blurry, so they must be problems with the lens. X

Answer 4

the eye lens bend light waves,focused them on the retina on the back of the eye, where there are then sent as impluse along the optic nerve to the brain.the eye lens focus the image on the retina of the eye so that we can see clear and exact image.it focused the image by bending the light to strike the retina correctly.this also refraction.like a camera lens focused light onto a piece of film with the image upside down.the lens of the eye is directly behind the pupil is not a physical object,its a lock of iris,or in other words a hole,so the lens cannot technically be behind the pupil. then it goes to the brain and tell what we are looking at.

Answer 5

The lens is a little flexible bag of gel-like protein just behind your iris (the coloured part of the eye). It can change shape because around it is a doughnut-shaped muscle called the ciliary muscle. When this muscle contracts, it squeezes the lens, making it fatter. This reduces the focal length of the lens, which allows you to focus on closer objects.

One important thing that people often misunderstand is that the lens is not the main thing that focuses light onto the retina; most of the eye's focusing power actually comes from the curvature of the cornea - the front surface of the eye. The lens acts as a fine control to adjust the focusing distance between close-up and distant. This adjustment process is called accommodation. that's all I got!

Answer 6

They focus the image on the retina of the eye so that we can see clear and exact image.

Answer 7

The lens refracts light that enters the eye via the pupil and focuses the light on the retina. Here with can be transmitted by the optic nerve to the brain.

Answer 8

It bends light waves, focusing them onto the retina on the back of the eye, where they are then sent as impulses along the optic nerve to the brain.