With many people realizing the freedom they can gain by wearing contact lenses, contact lenses are becoming more popular. While some may be used as a fashion accessory or vision aid, there are many who uses it to help correct astigmatism, and such can be done by wearing toric contact lenses.
Toric contact lenses have two different types of curvatures which would make for different powers, enabling it to correct for either myopia, which is near-sightedness, and hyperopia, which is far-sightedness. This contact lens actually has a combined effect of cylindrical lenses and spherical lenses. Thus, people with astigmatism, like cases where their corneas are not perfectly round, or simply need help with their vision for far distance or close-up, would wear this contact lens to overcome such problems. Previously, they may have been told that contact lenses would not suit them. In cases where people has only one eye affected by astigmatism, the eye care practitioner would prescribe the patient to wear the toric contact lens on the affected eye, and a spherical lens for the other eye which is not affected.
The build of toric contact lenses appears to be similar with regular lenses, which are soft or rigid gas permeable. However, there is a difference in power for the toric lens, where there are orientations to which is the top or bottom of the lens because they are not spherically symmetrical; while regular lens have power all around the lens. Thus, it is important for the toric lens to be properly worn to the correct orientation, and they are made to be able to hold with any eye movement so that the visual acuity would not be affected. For this, they are made thicker than regular lenses, therefore, are also heavier at the bottom. When wearing the toric lens, the thicker part of the lens would be pushed down automatically by the upper eyelid when the eyes blink, allowing the lens to properly rotate into its correct position. On the other hand, some may have ballasting on its top and bottom of the lens.
EzContactsUSA makes it a simple, fast and cheap way to Order your Toric Contact Lenses. You can shop with confidence – unlike other online companies, they have NO hidden fees.