Superior Vision Technologies Of Acuvue Oasys Contacts

Lenses have come a lengthy way considering that the day when they had been made of non permeable supplies like glass or difficult plastics. One firm has been a leading innovator in this business. The Acuvue Oasys 2 lenses are 1 of their latest and greatest new goods.

The first lenses developed did not permit any oxygen at all to pass via. The cornea is often a tissue lacking any blood vessels. It receives nutrients by way of diffusion from tear fluid outside the eye along with the aqueous humor inside as well as via neurotrophins delivered via nerve fibers.

The only indicates of obtaining oxygen to the cornea is via get in touch with with air in the atmosphere. Wearing contact lenses, that don’t permit this air to pass via, directly on the eye, limits the obtainable oxygen considerably. Oxygen is then only supplied to via tears, which are delivered beneath the lens by continual blinking. When insufficient blinking to circulate the tears occurs, the cornea begins to be oxygen starved, painful, and eventually encounter tissue death.

In the course of the 1960s soft plastics known as hydrogels had been developed. These permit oxygen to pass via the lens due in component to their high water content, adding significantly to the comfort level and safety of contact lenses. As a trade off, the high water content necessitated that the lens be thicker for durability. Later improvements occurred using the introduction of silicone hydrogel. This material permits 98% of obtainable oxygen to pass via. It is also much more durable, permitting for thinner colored contacts for dark eyes without prescription.

Another factor that may affect permeability is organic construct up on the lens surface. This may be lessened by meticulous cleaning. This challenge was addressed by Acuvue’s introduction of disposables. Changing to fresh contact lenses every day, or biweekly with extended wear, does not permit the construct up to affect permeability.

Besides breathability, other comfort aspects are wetability and smoothness. Wetting agents had been applied to the contact lenses, in storage, to maintain them moist and smooth during use. The challenge was that the longer they are worn, the much less wetting agent remained. Acuvue’s Hydraclear Plus technologies solved this challenge. The wetting agent is now permanently embedded, enabling the lens to maintain both wetness and smoothness.

Extended wear is yet another innovation. This permits the contact lenses to be worn for two weeks just before disposed of, if removed and cleaned every day. Alternatively they may well be worn continuously for up to 6 nights, just before replacing with a fresh pair. Several users desire the convenience of being free of charge from wearing glasses at all, or of awakening from sleep and being able to see clearly immediately.

The new contact lenses also supply UV protection. They absorb up to 96% of UVA and UVB. High levels of UV rays can trigger sunburn of the cornea. Some specialists also think blocking these rays will aid avoid cataracts from forming in the cornea.

The Acuvue Oasys 2 lenses are 1 of the latest examples of technologies improvements in contact lenses. This latest development makes contact lenses so comfortable that the wearer practically can not tell he is wearing them.