How Do Glasses and Contacts Correct Your Vision?

Last updated 10 months ago

You probably know dozens of people who wear corrective lenses—you may even wear them yourself. It’s estimated that only four in every ten people have perfect vision, which leaves 60% of Canada using eye wear or in need of vision correction. But most people put on glasses or contacts everyday without really understanding how they work.

What Makes Vision Blurry?

When light enters into the eye, the cornea and lens work together to focus the image onto the retina. The retina then sends the image to the brain, which is how we see. When you suffer from nearsightedness, farsightedness, or astigmatism, it means something is wrong with either the lens or cornea. When you see an optometrist , they will determine your prescription based on how much more light needs to be bent to give your brain a focused image.

How Do Corrective Lenses Work?

Corrective lenses are designed to help the lens and cornea create a clear image for the retina to send to the brain. They adjust how the light hits the eye so that, in combination with the lens and cornea, your vision is clear. Lenses bend the light more or less, depending on the strength of your prescription.

How Do Internal Freeform Lenses Make a Difference?

Advanced technology allows for the visual needs to be placed on the back of the lens using three-dimensional digital fusing. When this information is closer to the eye, it offers a wider field of view and much less distortion. This technology also takes into account the individual movements of your eyes, how far your lenses sit from your eyes, and the natural curvature of your face.

If you wear corrective lenses, visit FYidoctors to see how internal freeform lenses can make an improved difference in your vision. FYidoctors combines the knowledge, expertise, and innovation of some of Canada’s reputable and respected Optometrists. Learn more by visiting our website.