For you to see clearly, your
cornea and lens must bend, or refract, light rays and focus them on the retina, a layer of
light-sensing cells that lines the back of the eye. The light rays are converted by the
retina into impulses that are sent through the optic nerve to the brain, which recognizes
them as images. If the light rays are not focused properly onto your retina, the image you
see will be unclear. When this happens it is called a refractive error. The purpose of
glasses, contacts and refractive surgery is to correct or reduce refractive errors by
focusing light rays closer to or directly onto your retina. For information on correction
of refractive errors see our Laser Vision Correction page.
Contact us by phone at:
(559) 432-1000 (8-6 Mon to Thurs, 8-5 Fri)
(559) 431-KAYE
(After hours)
Email: natural@naturalvision.com
For you to see clearly, your
cornea and lens must bend, or refract, light rays and focus them on the retina, a layer of
light-sensing cells that lines the back of the eye. The light rays are converted by the
retina into impulses that are sent through the optic nerve to the brain, which recognizes
them as images. If the light rays are not focused properly onto your retina, the image you
see will be unclear. When this happens it is called a refractive error. The purpose of
glasses, contacts and refractive surgery is to correct or reduce refractive errors by
focusing light rays closer to or directly onto your retina. For information on correction
of refractive errors see our 
