Myopia & Hypermetropia

For an image to be perceived well, it must be perfectly centered on the retina (and not in front of or behind the retina). The focusing power and length of the eye from the cornea to the retina must match. This is ensured by a complex control system that develops during eye growth. However, the length of each eye does not always precisely match the focusing power of the cornea and lens. When the length is too short, a blurry image appears on the retina. In theory, the image would be perfectly centered on a point located behind the retina: farsighted (hyperopic) patients see objects better when they are farther away.

Conversely, when the length of the eye is too long relative to the focusing power, the image is again blurry. In this case, the image is clearly focused in front of the retina. Nearsighted (myopic) patients see things better when they are closer.

When an eye has no refractive error, it is said to be emmetropic.

You should know that Bellevue clinics have all the latest technologies available to diagnose and monitor cases of myopia and hypermetropia.