Biomechanical models contribute to a better understanding of both the normal and the diseased eye.
Squint, and you can almost make out that bird soaring over the horizon. But determining whether it’s a hawk or a raven will be nearly impossible for someone with myopia, also known as nearsightedness. In this common condition, light focuses on a spot in front of, rather than on, the retina. Eyeglasses can correct the defect, as can refractive surgery in which a lens-shaped portion of the cornea—the outer layer of the eye in front of the pupil—is removed in a precise way, pushing the focus back to the retina.