Many people wear eyeglasses store in Staten Island, to correct their vision but very few are aware of how they work to correct your vision. Eyeglasses work the same way no matter what your vision problem is; whether you are nearsighted, farsighted or have astigmatism. Understanding how eyeglasses help you to see clearly requires understanding how your eyes work.
When you look at something, the light rays come together or focus inside your eyes. If someone has perfect vision, the rays focus directly on the surface of the retina. Since the retina is curved, the image must curve and shrink. The job of both the pupil and the cornea is to shrink, curve and focus the image. If there are any irregularities, then the person’s vision will be blurry. Nearsighted people cannot see images that are far away because the light rays come into focus in front of the retina. It is the opposite for people who are farsighted. The light rays come into focus behind the retina in farsighted people because of the shape of their eyes. This causes objects that are near to be out of focus. Astigmatism is a condition in which the curvature of the eyes is irregular, resulting in a second focal point within the eye. This causes them to have blurry vision. Nearsightedness, farsightedness, and astigmatism can all be corrected with prescription glasses from our eyeglasses store in Staten Island. Eyeglass lenses are a curved piece of glass in which the curvature bends the light rays as they come near your eye helping the rays to focus directly on the retina instead of in front of or behind it. The two main lenses used in eyeglasses to correct vision are convex lenses and concave lenses. Convex lenses, which curve slightly, are used for nearsighted people. Concave lenses are used for farsighted people.
To learn more about how our eyeglasses store in Staten Island work to correct your vision, give our office a call. Our knowledgeable staff at Focus Vision Care is always willing to answer any questions you may have.