Contact lens is a cosmetic, corrective, or therapeutic lens usually placed on the cornea of the eye. Basically Contact lenses are substitute of glasses, but these are lightweight and virtually invisible. But now, many commercial lenses are tinctured faint blue to make them more visible when immersed in cleaning and storage solutions. Some cosmetic lenses are mainly colored to alter the appearance of eye and some lenses have a thin surface treatment with UV coating which helps to reduce UV damage to eye's natural lens.
Contact lenses are mainly used for two common purposes, to treat certain eye diseases or to change the apparent color of your eyes. Today, there are many options available for contact lenses. One can choose disposable lenses which can be changed over a night, or one can wear lenses for entire month too. If you want baby blue color in your eyes, then opt domestic contact lenses and if you have certain vision problem then this invisible tool is best for you. You can choose any contact lens according to your need or like. First acknowledge yourself with types of contact lenses, only then you can choose a best suited pair of lens.
Contact lenses can be divided into two main categories: Soft Contact lenses and Rigid Gas permeable.
Soft Contact lenses: Soft contact lenses are mainly of three types - daily disposables, extended wear disposables, and colored contact lenses.
Daily Disposables and Silicone Extended Wear Disposables: These contact lenses are made up of soft polymer-plastic material combined with a percentage of water. Due to water, oxygen can pass through the contact lens material which increases comfort. Some soft lenses provide UV protection also. There are also other soft lenses too, which are worn on a yearly basis and are not disposable. The most recent types of soft contact lenses in the market include Daily Disposables and Silicone Extended Wear Disposables. Silicone Extended Wear Disposables are made from a new silicone hydro-gel material that can be worn for up to 30 nights and days.
Colored Contact Lenses: Colored Contact Lenses are mainly meant to change the appearance of eyes. But they have vision corrective capability also. These are basically of four kinds - visibility tint, enhancement tint, color tint and light filtering tint. These four types of colored lenses serve the different needs of people as per the color visibility. Just remember, colored contact lenses are also a medical device and used for corrective purpose also. So, never give your colored contact lenses to anyone to wear.
Besides above mentioned benefits, soft lenses have some disadvantages too. Soft contact lenses easily absorb pollutants, soap or lotion. They are fragile too, which can irritate your eyes.
Rigid Gas permeable lenses:
Rigid Gas permeable lenses are more durable and easy to take care. These are made up with silicone polymers and allow oxygen to circulate to the cornea of the eye. They take more to adjust in comparison to soft contact lenses. Both soft contact lenses and rigid gas permeable have extended wear option, but should be worn as per your doctor's prescription. Rigid gas permeable lenses are of two types.
Bifocal Contact lenses:
Bifocal contact lenses are mainly designed to give good vision to people who have presbyopia. These bifocal and mono-vision lenses come in both soft and rigid contact lenses.
Toric Contact Lenses:
Similar to Bifocal contact lenses, these lenses are also meant for vision problem like astigmatism. These are also come in both soft and rigid contact lenses. Toric lenses are used for two purposes, one for the astigmatism and another for nearsightedness or farsightedness.
After knowing all types of contact lenses now you are able to buy a perfect pair for yourself. There are various online stores, where you can get more details about best selling contact lenses. But it is advisable that whatever you buy for your eyes, you must consult your doctor first and buy a product from a known brand likeFreshlook and Acuvue. Take advantage of online deals to order products from 2000+ online stores at discounted prices.
Tony, is an associated author with website CouponAlbum. He asist his team to write some money saving articles on coupons blog.
Tony did his Ph.D. from the Honolulu University, Hawaii. After completing the doctral degree, Tony joined Hewlett Packard as an Design Engineer. He left HP in 2004 to do independent consulting and then in 2006 started couponalbum to help people save money.
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