The Different Types of Contacts


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The types of contacts that are available today are nearly as numerous as the corrective issues they're designed to correct.

But today's lenses don't even need to be corrective in nature.

Many are purely aesthetic, enabling a wearer to change eye color from brown to violet, for example, or to change from the appearance of human eyes into eyes that resemble that of a cat or wolf or even an alien!

Lens prescriptions include information on proper fit, measuring such attributes as curvature and diameter.

But the prescription also contains other pertinent information such as proper measurements for correcting vision as well as the brand of lenses believed most suitable for the patient's situation.

It's not necessary to understand all the different makes and models of lenses.

That's more the responsibility of vision specialists since they're the ones responsible for making the final determination based on their training, knowledge and past experience.

There are several ways to categorize lenses. One way is to categorize lenses by material type.

Plastic is the material of choice when it comes to lenses.

Its fluid nature enables a more comfortable fit and its availability makes lenses more affordable.

Plastic lenses fall into 3 general categories including gas permeable, hard and soft.

Another way to categorize contacts is by their wear and replacement schedules.

As for wear schedules there are daily wear and extended wear lenses.

Daily wear lenses are designed to be inserted and removed every day whereas extended wear lenses can remain in place for one to several weeks before removing.

And based on replacement schedules, there are disposable lenses and non-disposable.

Daily wear disposable are worn once and then throw right away, completely eliminating the need for cleaning.

Regular disposable lens are worn several weeks before being thrown away.

Again, the goal with disposables is less maintenance which lowers the risks of infection and other eye problems.

Non-disposables require careful and regular maintenance as they don't get replaced until torn or until a patient's prescription changes.

And finally there are some special kind of lenses.

Theatrical lenses started out being designed for and used by actors and other performers.

Giving eyes the ability to change from normal-looking to horrific and demonic, theatrical lenses are gaining in popularity among everyday users.

Used primarily as a way to change a person's look, the lenses generally are not designed for corrective purposes, but they do require a prescription for proper fitting.

Besides theatrical lenses, there are lenses that offer protection against damaging ultraviolet light - lenses called varichrome that darken when exposed to bright sunlight making sunglasses an unnecessary accessory, and lenses designed to change the color of one's eyes.

Then there are the specialized lenses such as Toric Lens that correct more troublesome Astigmatisms, Bifocal lenses which help a person see both close up and far away, spherical or aspherical lenses, and monovision lenses in which one lens assists with close up vision and the other lens is dedicated to distance vision.


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Learn which eye vitamins naturally improve eye health. The Rebuild Your Vision Ocu-Plus Formula was designed to improve vision and eye health, and help people with Macular Degeneration, Glaucoma, and Cataracts.
Learn which eye vitamins naturally improve eye health. The Rebuild Your Vision Ocu-Plus Formula was designed to improve vision and eye health, and help people with Macular Degeneration, Glaucoma, and Cataracts.


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The Different Types of Contacts to Contact Lenses

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