Reliable Vision Expertise Of Acuvue Oasys Eye Contact Lenses [article from Articleranks]

Reliable Vision Expertise Of Acuvue Oasys Eye Contact Lenses

Contact lenses have come a lengthy way since the day when they had been made of non permeable materials like glass or hard plastics. 1 company has been a leading innovator in this business. The Acuvue Oasys 2 contact lenses are 1 of their most recent and greatest new goods.

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

The only means of acquiring oxygen to the cornea is by way of get in touch with with air in the atmosphere. Wearing lenses, that don't allow this air to pass by way of, directly on the eye, limits the offered oxygen considerably. Oxygen is then only supplied to by way of tears, that 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 ultimately encounter tissue death.

Throughout the 1960s soft plastics called hydrogels had been developed. These allow oxygen to pass by way of the lens due in part to their high water content, adding greatly to the comfort level and safety of lenses. As a trade off, the high water content necessitated that the lens be thicker for durability. Later improvements occurred with the introduction of silicone hydrogel. This material permits 98% of offered oxygen to pass by way of. It can be also a lot more durable, permitting for thinner colored contacts for dark eyes.

A further factor that may impact permeability is organic create up on the lens surface. This might be lessened by meticulous cleaning. This problem was addressed by Acuvue's introduction of disposables. Changing to fresh lenses every day, or biweekly with extended wear, does not allow the create up to impact permeability.

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

Extended wear is a further innovation. This permits the lenses to be worn for two weeks prior to disposed of, if removed and cleaned every day. Alternatively they may perhaps be worn continuously for up to 6 nights, prior to replacing with a fresh pair. Numerous users desire the convenience of becoming free of charge from wearing glasses at all, or of awakening from sleep and becoming able to see clearly instantly.

The new lenses also provide UV protection. They absorb up to 96% of UVA and UVB. High levels of UV rays can trigger sunburn of the cornea. Some authorities also believe blocking these rays will help stop cataracts from forming in the cornea.

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

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