It is no secret that the Contacts industry is booming. With over 71 million people worldwide actively wearing Contacts, the industry is at an all time high and growing steadily. What is interesting about Contacts is that the lenses have significantly evolved overtime. Contact lenses have been introduced to help alleviate problems with a nearsightedness (myopia), farsightedness (hyperopia), astigmatism and presbyopia to name just a few conditions, but one thing remains the same, Contacts simply work and if you have ever been curious about exactly how they work, read on.
Light in the Right Direction
Vision is based primarily on how light is refracted into the retina. Contacts work the same as eyeglasses essentially by altering light direction and focusing it properly into the retina. This is the basic model of Contacts, but depending on whether you are nearsighted, farsighted, or have astigmatism, your lenses will work differently.
Patients that are nearsighted have trouble focusing on objects that are farther away. Contacts designed for nearsightedness offer light refraction into the retina in a specific manner. Light is focused in front of the eye rather than directly on the retina. This enables distance sight to be better accounted for and achieve ideal vision.
On the opposite end of the spectrum from nearsighted patients are those with farsightedness. These patients have trouble focusing on objects closer to the eye. Contacts for farsighted patients increase focusing power by covering light rays to allow the patient to focus light adequately. Contacts move the focus forward onto the retina for farsighted individuals.
Plus and Minus Signs on Prescriptions
Contacts can be a little confusing to those that are not educated in the ins and outs of the lenses. One area in which some patients may become confused is with the notation of a plus or a minus sign on their prescriptions followed by a number. Minus signs are for those needing nearsightedness correction and plus signs are for those with farsightedness.
Natural Vision with Contacts Compared to Eyeglasses
Distance is a peculiar thing and is especially unique when it comes to comparing eyeglasses to Contact Lenses. Since Eyeglasses sit in front of your eyes & the lenses are about 12 mm away from the Cornea of your eye. The seemingly small distance of 12 mm actually causes significant change in the size of the things we see with eyeglasses.
For instance, eyeglasses that correct for nearsightedness cause minification which makes objects look smaller than normal & farsightedness cause magnification which makes objects look bigger than normal. However, since Contacts are in direct contact with the cornea, vision is natural and with Contacts for nearsightedness there is no minification & with Contacts for farsightedness, there is no magnification.
Contacts have revolutionized the vision industry and if you need quality Contacts at a competitive price, Lens Experts is here to help. We have the latest brands to help you get the most from your Contacts offering dailies, weekly & monthly disposables so you can choose how often to change the lenses. Lens Experts also offers specialty Contact Lenses by Bausch and Lomb that correct for high levels of farsightedness (hyperopia) for after cataract removal for adult aphakia SILSOFT Contacts (Powers +12 to +20) and pediatric aphakia SILSOFT SUPER PLUS Contacts (Powers +23 to +32), so vision is natural without excess magnification and thick glasses.
Visit Lens Experts online to order quality Contacts Lenses & let us help you get the clearest vision like never before!