Thursday, February 25, 2010

Understanding Acuvue Oasys Contact Lenses

By Adriana Noton

There are several models of Acuvue contact lenses which are manufactured by Johnson & Johnson. The Acuvue Oasys and the Acuvue Advance use a technique which embeds a silicon wetting agent. This keeps the lenses very moist which aids in getting a smooth comfortable fit. Other models offered by Acuvue are the Acuvue 2 and the 1-DAY Acuvue.

The Acuvue 2 COLOURS is used for enhancing or changing eye color and will not correct vision. All the other models discussed here will correct near or farsightedness. There are 10 different colors available with the Acuvue 2 COLOURS.

Oasys lenses can be taken out and cleaned daily for up two weeks before replacing or you can continuously wear them for up to six nights before replacing them with a fresh pair. With the Acuvue Advance you clean them daily for two weeks and then replace them with a fresh pair of contacts. The Acuvue 2 can be worn continuously for up to six nights before replacing or you can clean them daily for two weeks before having to replace them. The 1-DAY Acuvue are worn for only 1 day and then you dispose of them and use a fresh pair.

The Oasys family of lenses provide excellent ultraviolet light protection. The Acuvue Oasys is rated at Class I UV protection with 96% UV-A and 100% UV-B radiation. The Acuvue Advance contacts also has a Class I UV rating with 93% UV-A and 99% UV-B radiation. The Acuvue 2 and the 1-Day Acuvue have Class II UV ratings with 82% UV-A and 97% UV-B radiation.

The Acuvue brand has invested a lot of resources in making sure their lenses have a smooth and comfortable fit. They use silicone hydrogel material that allows a high degree of available oxygen to be provided to the eyes. The Oasys uses senofilcon A and allows 98% of available oxygen to pass to the eyes. The Acuvue Advance uses alyfilcon A and allows 97% of available oxygen to be provided to the eyes. Both the Acuvue 2 and the 1-DAY Acuvue are constructed of etafilcon A providing 88% of available oxygen to the eyes.

Another important factors for providing comfortable wear are keeping the lens wet and smooth. The Oasys lenses use the next generation of HYDRACLEAR technology called HYDRACLEAR PLUS. HYDRACLEAR PLUS embeds a higher volume the wetting agent. This makes the Oasys lenses work well in a variety of environments, outside or inside. HYDRACLEAR PLUS increases the smoothness of the lenses. Blinking is very smooth. You can't feel the contact lenses at all. The Oasys Advance use the first generation of HYDRACLEAR.

The LACREON technology is used in the 1-DAY Acuvue MOIST. The LACREON is similar to HYDRACLEAR. It also embeds a wetting agent but it adds a wet cushion as well. This cushion mimics tears which greatly reduces friction and maintains moistness.

A handy feature of the Acuvue family of lenses is the ease of handling. A slight blue tint make them visible when sitting in their case. Each lens has a 1-2-3 mark for easy insertion.

Acuvue Oasys come in special versions for astigmatism and presbyopia. There is also a special version of the Acuvue Advance for astigmatism. With the variety of features, attention to detail and advance technology Acuvue contact lenses are among the best on the market.

About the Author:

No comments: