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Air Optix For Astigmatism

By John Dick ABO, FNAO

Air Optix for Astigmatism contacts are designed to address the most common refractive problem found among patients today: an irregularly shaped cornea resulting in astigmatism. While addressing this need, Air Optix for Astigmatism also maintains the overall health of the eye through provision of enriching and nourishing oxygen as well as much need moisture. Air Optix for Astigmatism are also designed using a stabilization process of paramount important to correcting the toric cornea. Combining state of the art toric lens technology with a highly functioning hydrogel designed to maintain optimum ocular health; these lenses are among the best for correcting astigmatism.

Astigmatism results from the irregular shape of the cornea in which light is divided into two separate planes as it passes through the transparent medium of the cornea on its way to the retina. This separation causes light to focus at two distinct points on the retina rather than one as in cases of simple spherical correction such as simple nearsightedness or farsightedness.

To combat this problem, correction must be applied in each individual plane: sagittally (horizontal) and tangentially (vertical) at axes of 90°. The horizontal correction is known as the spherical correction and addresses the problem of nearsightedness or farsightedness. The vertical correction is known as the cylinder and depending on the degree of irregularity induced by the astigmatism requires precise fitting when prescribing toric lenses. Toric lenses, unlike spherical lenses, must remain stable and in place when fitted to the patient’s cornea, due to the need for correction in each plane.

Sometimes several lens designs are used to finally find a good fit for the patient. Objective testing discovered Air Optix Aqua for Astigmatism have a 95% first time fitting rate. This is critical to the success of the lens. If it’s allowed to rotate, the patient’s vision will suffer. Air Optix for Astigmatism are designed with a unique prism ballasting system with scribe lines at the 3, 6 and 9 o’clock positions; stabilizing the lens, limiting the amount of rotational recovery needed and improving the patient’s vision when compared to other contact designs such as Coopervision’s Preference Toric lenses which are simply ballasted at a 6 o’clock position. Basically, Air Optix for Astigmatism will provide the patient with the correction they need, where the need it and keep it there through patient blinks or rubbing of eyes.

In addition to being an excellent source of correction for toric patients, these lenses are well equipped to maintain overall good ocular health. Air Optix for Astigmatism has one of the highest levels of oxygen transmissibility of any lens on the market at a value of 108 Dk/t as compared to other toric lenses such as Coopervision’s Frequency 55 Torics or Baush and Lomb’s Soflens 66 Toric lenses. Air Optix for Astigmatism comprised of the hydrogel Lotrafilcon B which is a hydrophilic polymer designed to absorb and retain moisture from the sources of natural tears, softlens rewetting drops and contact solutions designed to hydrate the surface of the lens. They are plasma treated resisting debris, protein buildup, bacteria and allergens which may all contribute to diminished visual acuity, ocular inflammation or infections of the eye.


Compare Price to Similar Contact Lenses

Contact Lens Price Per Box Lenses Wear Days Price /Lens Price /Day x2
*Air Optix For Astigmatism* $33.69 6 30 $5.61 $0.37
PureVision2 For Astigmatism $39.09 6 30 $6.52 $0.43
Biofinity Toric $39.99 6 30 $6.67 $0.44
Proclear Toric Contact Lenses $47.59 6 30 $7.93 $0.53
Acuvue Oasys For Astigmatism $24.79 6 14 $4.13 $0.59
1-Day Acuvue Moist For Astigmatism 90 Pack $65.44 90 1 $0.73 $1.45

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