Iris, Pupil, Cornea, Retina, Lens,
Eye muscle, and Optic Nerve.
The changing of shape of
the eye lens by eye muscles
to allow a sharply focused
image to form on the retina.
Hyperopia: the inability of the eye
to focus light from near objects
Presbyopia: a form of far-sightedness
caused by a loss of accommodation as
a person ages
Myopia: the inability of the eye to
focus light from distant objects
A lens that is placed directly on the
cornea to combat far-sightedness or
near-sightedness