How Toric Contact Lens Rating Works
The toric contact lens rating is based on the difference between soft and rigid gas permeable contacts. These two types are the only available style that is manufactured for today's market. How you can tell the difference between the 2 is that softlenses are designed for disposable wear, and make adaptation for your eye a much easier process. Rigid lenses on the other hand, are tailor-made to the wearer, are more durable, and easy to clean. Although these are only a few basic differences, toric contact lens rating suggests that rgp is a better choice when it comes to correcting astigmatism.
Those who have astigmatisim, have an irregular shaped cornea. Instead of being in the form of a sphere, their corneas are flattened into the shape of an oval, resembling an egg or football appearance. Because of this, the regular circular contactlenses will fail to work, and will only shift and slide, distorting their vision. According to toric contact lens rating studies, the softlens for toric also have the potential to shift, whereas the rigid tend to have more weight in the bottom and remain securer in place.
For the most part, toric-contacts are made softer instead of harder, and for this reason are disposable. You will discover that online there are a variety of products that are daily, 2-week or monthly disposables and include brand names such as acuvue, encore xr, soflens 66, biomedics 55, focus, proclear compatibles and more. In addition, there is even colored contact lenses that you can purchase if you have astigmatism. For instance, there is freshlook colorblends, durasoft 3 optifit colors and even the dramatic shades of black offered by prescription fx.
Therefore, whether you decide to wear rgp or soft-lenses for toric correction, you will find that the best quality is infused with whatever type you choose.
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