What is Astigmatism? (ah-stig-mah-tizm)
How can it be treated?
How a Horizon Toric Lens Corrects Astigmatism
What is Myopia?
How does a Horizon Contact Lens correct Myopia?
What is Hyperopia?
How does a Horizon Contact Lens correct Hyperopia?
What is Presbyopia??

What is Astigmatism? (ah-stig-mah-tizm)

Astigmatism is a visual distortion caused by an irregularly shaped cornea (the primary focusing lens on the front of the eye).This is a normal condition that exists when the surface of the cornea is toric- that is, oblong like a football or rugby ball instead of perfectly round like a basketball. Light rays passing through an oblong cornea bend unequally, causing two focusing points. Consequently, vision is blurred at most distances. Forty-five percent of people who require vision correction have some degree of astigmatism. Symptoms include squinting, occasional headaches and eye strain. In most cases, astigmatism is accompanied by myopia (nearsightedness) or hyperopia (farsightedness). Astigmatism usually is hereditary, although environmental factors, such as too much close-up work and low light levels, also may contribute. Over time, astigmatism may increase slowly. Butgenerally, over a lifetime, the condition remains relatively stable.

How can it be treated?

Westcon's Horizon Toric can correct your vision for astigmatism. If your prescription contains three parts rather than one, you have some amount of astigmatism.A prescription with three parts looks like this: -2.75 -1.25 x 180. Contact lenses that correct astigmatism are called toric contact lenses. It used to be that only spectacles or rigid contact lenses could correct astigmatism. Now there is a soft lens design that can correct most astigmatisms, Westcon’s Horizon Toric. Around the world, millions of people with astigmatism wear soft contact lenses every day. Studies have found that vision with soft toric contact lenses is comparable to vision with eyeglasses. Because Westcon Horizon Toric lenses are more complex than regular lenses, toric lenses have to be custom fit to your eyes. First, your doctor will find the right fit for you.Then the lenses must be ordered to precise specifications.When the lenses arrive, the fit and quality of vision will be checked by your doctor when the lenses are dispensed to you.This process can usually be completed within a few days.

How a Horizon Toric Lens Corrects Astigmatism

The irregular shape of an astigmatic’s eye cornea and/or lens produces two focusing points in front of or behind the retina resulting in blurred vision.

The Horizon Toric Lens corrects the refractive errors, creating a single focal point on the retina where vision is sharpest.

What is Myopia?

Myopia is commonly called “nearsightedness”. It occurs when one’s eye is “too long,” so that distant objects can’t be properly focused on the retina. The blurred vision that results can be corrected with “minus power” lenses. Nearly half of all people with vision correction needs are nearsighted.

How does a Horizon Contact Lens correct Myopia?

The shape of a myopic eye focuses images in front of the retina, producing blurred distance vision.

By reducing the cornea’s focusing power, Westcon’s Horizon spherical contact lens creates a single focal point on the retina where vision is sharpest.

What is Hyperopia?

Hyperopia or “farsightedness”occurs when the eye is “too short” and focused light falls on a focal point behind the retina. People who are hyperopic need help seeing objects close up.

How does a Horizon Contact Lens correct Hyperopia?

The shape of a hyperopic eye focuses images behind the retina, producing blurred vision of near objects.

By increasing the cornea’s focusing power, Westcon’s Horizon spherical contact lens corrects the refractive error, creating a single focal point on the retina where vision is sharpest.

What is Presbyopia??

Presbyopia (prez-bee-OH-pee-uh) is an age-related condition that makes it difficult for us to see objects up close.As we age, the crystalline lens within our eye hardens and loses the elasticity that’s required to focus on objects up close. It happens to everyone. It can develop as early as 40 or as late as 50. But by 50, virtually everyone is presbyopic. Fortunately, presbyopic eyesight can easily be improved. One option is contact lenses. Wouldn’t you like the freedom and comfort of soft contact lenses? Westcon offers two different contact lenses for people with presbyopia. The Horizon Progressive, a multifocal lens for near, intermediate and far vision as well as the Horizon Bi-Con, a bifocal lens for near and far distances. up close and everything in between.The
power in the lens changes progressively from the center to the edge of the visual zone. Good intermediate vision is important for tasks such as working at a computer.