Examining the Physics of Contact Lenses

How Do Corrective Lenses Work? The physics of contact lenses is a complex topic but there are some basic concepts that can offer up a reasonable explanation of how contact lenses and other corrective lenses work. First, understand how corrective lenses work. The eye picks up a particular sight, reduces it to the size of the retina, focuses on the image and translates that to a picture that's deciphered by the brain. When there's a problem with any of the steps along the way, the image becomes distorted. Corrective lenses are fashioned to address whatever that particular problem is and to give your eyes the ability to go past that point in the vision process. To very basically describe the physics of lenses, the contacts are ground specifically to fit one pair of eyes - yours. The lens fits over the cornea of the eye, using some artificial tear solution as a polymer.

A Brief History of Contact Lenses

The first thing you need to understand is that the concept of a contact lens has been around for centuries. It just wasn't until the mid 1900s that the first contact lenses were made, tolerated and useful for regular wear. Even then, there were some real limitations due to the physics of contacts lenses. The lenses were hard on the eyes and using them was a sensitive proposition. Over the past two decades, soft lenses are only one of the ways the physics of contactlenses has changed. There are tinted lenses, UV protective lenses and glamour lenses that offer no vision correction - only provide for a change in eye color.

Today's Contact Lenses and Where to Shop

Today, the person who wants contact lenses has tons of options. There are literally hundreds of places to purchase contact lenses but you should always be sure you are shopping with a reputable company that provides quality products. After all, you have only one set of eyes and you have to take good care of them. Like any technology, you don't have to fully understand how it works in order to take advantage of it. You don't have to understand the physics of contact lenses to have great vision. Start by visiting your vision care specialist then shop with us for contact lenses and supplies.

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