How do different types of contact lenses work

Much like glasses, contact lenses refract incoming light. Depending on your specific vision deficiency — myopia, hyperopia, astigmatism, etc. — your contact lens is designed to adjust the light as it enters your eye, thereby correctly hitting your retina (at the back of your eye). This produces a clear image, otherwise known as ‘corrected vision’.

Much like glasses, contact lenses refract incoming light. Depending on your specific vision deficiency — myopia, hyperopia, astigmatism, etc. — your contact lens is designed to adjust the light as it enters your eye, thereby correctly hitting your retina (at the back of your eye). This produces a clear image, otherwise known as ‘corrected vision’.

It all depends on your eyes and the choice of lens material. In the past some wearers experienced dry eye symptoms when wearing their contact lenses. This is less likely to occur using today’s contact lenses because of the introduction of new materials. It is important that you inform your eye care practitioner if you feel you are experiencing dry eyes while using your contact lenses. More than likely a change in the brand will help solve the problem.

Yes — you can get contact lenses for both!

Yes, there are bifocal and multifocal contact lenses out there. Bifocal and multifocal contact lenses, just like bifocal glasses, correct both near- and far-sightedness. Two typical designs of multifocal lenses are simultaneous and alternating. Simultaneous multifocal lenses place portions of the lens for distance and for close-up in front of the pupil at the same time. Your brain will determine which part of the lens to emphasize and which to ignore. Alternating lenses have distinct zones on the lens that correct for distant and close up objects.