1 5 Social Studies Writing Prompts Social studies can be a very fun subject if given the opportunity. 2  There are plenty of homework options that both bring the subject to life and allow for student creativity.
The cornea helps the eye focus as light makes its way through. It is a very important part of the eye, but you can hardly see it because it's made of clear tissue. Like clear glass, the cornea gives your eye a clear window to view the world through.
Causes, incidence, and risk factors. People are able to see because the front part of the eye bends (refracts) light and points it to the back surface of the eye, called the retina. Nearsightedness occurs when the physical length of the eye is greater than the optical length.auses, incidence, and risk factors. People are able to see because the front part of the eye bends (refracts) light and points it to the back surface of the eye, called the retina. Nearsightedness occurs when the physical length of the eye is greater than the optical length.