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Posted on 11-22-2017
Prescription lenses can be used to help correct your vision and improve eyesight when contact lenses or eyeglasses are worn. But you may find yourself wondering how these prescription glasses or lenses work. Here is what you need to know about how prescription lenses work to help you see.
Prescription glasses and contacts both work to correct your vision and are designed to alter the direction of light rays so that they shine correctly on your retina, allowing you to see properly. The way they alter the direction of light varies based on whether you are near or farsighted.
If you are nearsighted, your eyes over focus and this causes light rays to focus in before it reaches the retina, instead of focusing directly on the retina. Prescription lenses diverge the light rays so that the eyes don't focus so much on it, allowing the light rays to reach the retina where they belong. For people with farsightedness, the eyes do not focus well, and as such, light rays do not form a point before reaching the retina. Prescription lenses help to increase the eyes focusing power so that the light reaches a point by the time it reaches the retina, allowing it to correctly see images.
Do you have blurry vision or trouble seeing? If so, you may need prescription glasses or lenses. If you need to have your eyes checked Eye Society in Chicago would love to help you get the correct lenses to improve your vision.
Contact us at 312- 640-2405 to schedule an appointment with our Streeterville location or 312- 631-3247 to schedule an appointment with our Loop office.
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