MYOPIA

also called Nearsightedness, visual defect in which the resting eye focuses the image of a distant object at a point in front of the retina, the light-sensitive layer of tissue that lines the back and sides of the eye. Myopic eyes, which are longer than normal from front to rear, are somewhat more susceptible to retinal detachment than are normal or farsighted eyes. Myopia is corrected by concave lenses.