iris		The image formed when light rays converge.
pupil		Curved inward.
focus		What carries an image from the eye to the brain.
retina		The bending of light rays.
beam		The inner layer of the eye.
image		Able to see objects better up close.
convex		To make an image clear.
converge		The transparent body in the eye.
refraction		To bounce of a surface.
concave		The reproduction of an object.
lens		The white of the eye.
cornea		A group of light rays.
sclera		To spread apart.
diverge		The colored ring in the eye.
variable		The blind spot in the eye.
optic disk		Able to see objects better from a distance.
nearsighted		Curved outward.
reflect		An explanation used as the base for an experiment.
real image		An observable quantity that could change.
hypothesis		The opening in the eye.
optic nerve		Outer surface of the eye.
farsighted		To come together.