Accommodation is an adjustment, especially adjustment of the eye for seeing objects at various distances. This is accomplished by the ciliary muscle, which controls the lens of the eye, allowing it to flatten or thicken as is needed for distant or near vision.
Accommodation
Focus or focusing
It is involved in Refraction.
the cornea, which is a clear outer covering, refracts light onto the retina
the iris and the lens focus the image to fall on the RETINA.
parallel light rays enter the eye and are bent by the cornea and lens (a process called refraction) to focus precisely on the retina, providing a crisp, clear image.
Vitreous humor is a clear fluid that fills the space in your eyeball between the lens and retina.
A clear thing behind the Iris but befor the Retina
The cornea is the clear front surface of the eye, which acts like a camera lens, and allows light through to reach the retina.
The pupil is a hole, there isn't a clear curved membrane begind it. The rertina is curved, however the retina isn't clear.
When the light actually reaches the retina the image is blurred (except when looking at close objects when the image is focused on the retina and looks clear. The condition is known as short-sightedness.
a clear gel in the eye that fills the space between the lens and the retina in your eyeball.
The pupil is a hole, there isn't a clear curved membrane begind it. The rertina is curved, however the retina isn't clear.
The vitreous humor is the jelly-like clear substance that is between the lens and retina in the eye.