Air Optix Aqua Multifocals lenses manufactured by Ciba Vision are designed to provide clear sight as well as maintain the comfort and wearability associated with the Air Optix Aqua brand. This is accomplished through the patented TriComfort™ technology which is built on three principles: increased breathability of the lens, retention of moisture and resistance to proteins, bacteria and allergens. This predication allows the patient to enjoy increased overall comfort when compared to more traditional planned replacement lenses such as the earlier Ciba Focus brand and better ocular health preventing many of the common complications associated with extensive lens wear.
Multifocal lenses such as Air Optix Aqua Multifocals are designed to combat a problem which generally begins to affect patients around age 40. The eye’s focusing ability exists with two primary structures: the curvature of the transparent corneal medium covering the visual axis and the ability of the crystalline lens to flex and allow objects at different focal lengths to be viewed clearly. The crystalline lens is held in place by a system of suspensory ligaments known as the zonules of Zinn. These ligaments are responsible for flexing to allow the lens to instantly bring differing focal lengths into focus. This process is known as accommodation or the accommodative reflex.
The ligaments responsible for this process begin to stiffen and harden starting at age 40 and continuing for the remainder of the patient’s life until no reflex ability remains. To combat this problem, several modalities are available at the eyecare professional’s disposal depending on the patient’s particular needs: reading glasses, bifocals, monovision contacts, and bifocal contacts. Air Optix Aqua Multifocal lenses are designed to accommodate these needs through providing a system which allows the patient to view objects clearly at any focal length whether its distance, intermediate or near — especially for patients making the transition through each focal length.
Air Optix Aqua Multifocals are manufactured using a Precision Transition Design. This system allows for concentric zones of corrections with varying degrees of corrective power increased incrementally to allow for ease of transition at different focal lengths. Additionally, the lenses are aspherically designed allowing for a wider field of view and reducing the problem of spherical aberration in conventional lenses. This also allows the lens to be centered more easily and allows the patient to enjoy better vision.
In addition to this revolutionary design process, these lenses provide the eye with five times the amount of oxygen of other hydrogels which results in less irritation, prevention of corneal neovascularization and clear vision with a 138 Dk/t value. Wettability is another concern when assessing ocular health. In addition to being a hydrophilic silicone hydrogel polymer with a water content of 33%, the contact angle is 30% lower allowing more moisture onto the surface of the corneal tear film; replenishing it and preventing dry eye complications and discomfort. The extremely high oxygen content, moisture retention and progressive multifocal design make Air Optix Aqua Multifocals a great choice for presbyopic patients and their unique visual and ocular requirements.