Refractive Disorders

Refractive disorders affect the cornea and the way we see. Our eyes are very much like the way a camera takes a photograph – the refractive process. The cornea and lens in your eye act as the camera lens and the retina is similar to the film. The image that your retina “sees” goes to your brain, which tells you what the image is. The cornea bends, or refracts, light on the retina enabling us to see. When the curve of the cornea is irregularly shaped, the cornea bends light imperfectly on the retina. This is what causes a refractive error and affects your vision — myopia, hyperopia and astigmatism.