What Does “Refractive” Mean?
Even if you know all about myopia (nearsightedness), hyperopia (farsightedness), and astigmatism, you may not know what “refractive” means. These vision problems are called refractive errors, meaning that an irregularity in the shape of the eye or the curvature of the cornea is preventing light entering the eye from focusing on a single point on the retina. When light cannot…