Different Types of Contact Lenses

Contact lenses are small circular pieces of glass cautiously put in the eyes so intended for cosmetic, corrective and therapeutic reasons. The idea of it is initially originated via Leonardo da Vinci in 1508. As time goes by, contact lenses have been more improved and progressed by brilliant professionals. These improvements made a variety of lenses defined by its characteristics, life span, and uses.

Soft Contacts and rigid Contacts (RGP) are the two characteristics of contact lenses. They are made of material ( permeable polymers) that allows sufficient oxygen to get through the cornea of the eyes. Soft contact lenses are more comfortable to use compared to rigid gas permeable Contacts. Rigid Gas Permeable contact lenses need more time for user to get accustomed to. To shield the normal layer of the eyes, some of soft contact lenses has UV protection layer. In contrary to Rigid Gas Permeable lenses, soft lenses are more fragile and are more vulnerable to eye contamination attributed its thinner layer. RGP has also its edge on the latter it relation to its application for it is simpler to place and remove.

The two main kinds of wear schedule namely daily disposable and extended wear. Daily disposables are also referred to as one-day disposable. Such are ideal for sensitive and allergic eyes. Since daily disposable lenses don’t require cleaning, some people considered it as more hassle-free than the other. These type of lenses have to be thrown before sleep, these are designed for day-time use only.. On the contrary, extended wear lenses are functional for certain period without removal. The two main types of extended wear lenses, there are lenses that are used over a weeks time and others are the ones that can be used within a thirty day period. The lenses that can be used in one month are called super permeable because they contain Silicone Hydrogel which provides more oxygen in comparison to other lenses..

Contacts have different purposes. They can be used for fad, corrective and therapeutic purposes. There are various types of cosmetic lenses to choose from such as light-filtering tint, enhancement tint and color tint. Color tints alter the shade of the eyes into different colors but mostly violet, amethyst and green. There are also lenses designed for sports known as light-filtering tints. Light filtering tints mute specific colors. Enhancement tint enhances the color of the eyes through its translucent tint.

Concerning correction modality, there are bifocal, toric and Orthokeratology lenses that correct certain vision problems. Bifocal contact lenses are ideal for an eye that is suffering from inability to focus on near things named presbyopia.Lenses for presbyopia could be made either in soft or rigid gas permeable materials. It may be disposable or monthly wear. Toric Contacts are designed for astigmatism, an eye blurry image. They come with soft and rigid gas permeable material. Apart from astigmatism, it is also designed to fix nearsightedness or farsightedness problem. Orthokeratology lenses are also known as Corneal Reshaping contact lenses that temporarily remedy nearsightedness or mild myopia eye disorder. These special lenses are put on throughout sleep and taken away after waking up. The material used for this is rigid gas-permeable.

There are lenses which can be also therapeutic referred to as bandage lenses. These are the kind of lenses take care of eyes problems in cornea and anterior just like corneal edema, keratitis, corneal ectasis, corneal edema, descemetocele and a lot more.

As time progressed, there will be more improved contact lenses. There will be discounted contact lenses with more advanced feature. Moreover,mindful purchasing should be considered, it should be FDA approved. C.lenses might offer people a great aid yet right use of it should not be overlooked.

Clinton Bernat writes articles about Contact Lenses for netlens. Netlens offers Discount Contact Lenses for online ordering.