October 22nd, 2011
A new breakthrough in contact lens design has meant that contact lenses are even safer than before. Researchers at John Hopkins university have discovered a substance that may prove useful in repelling bacteria from contact lenses. Most of the few complications that can arise from contact lens use are caused by bacteria.
The discovery was made by researcher Fan Young, who specializes in biomaterial and nanomaterial engineering. Earlier in life, Ms. Young had been told that wearing contact lenses could possibly give her an eye infection. This spurred her to seek a way to reduce this possibility. Her inspiration came from a lab experiment where she was looking to find a compound that would adhere to bacteria. There were some compounds that simply would not stick to bacteria, and this provided the inspiration for her work in creating an anti-bacterial contact lens material.
Infection can be a problem for any contact lens user. Whether or not one´s contacts are regular prescription lenses or non-prescription cosmetic lenses, precautions must be taken. All instructions on the lens packaging must be followed, and lenses should never be bought on the black market. If you take care of your prescribed lenses, you should have clear vision without worry.
Tags: Breakthrough, Contact, Lenses, Technological
Posted in Lasik Astigmatism | Comments Off
October 15th, 2011
If you suffer from astigmatism and need toric contact lenses, but are on a budget, then you may want to consider Soflens Toric by Bausch and Lomb. They are among the least expensive toric lenses but offer very high value for your dollar.
Soflens Toric (formerly known as Soflens 66 Toric) lenses are for daily wear and daily disinfection, and are disposable weekly or bi-weekly. Alternatively, they can also be used as extended wear lenses for one to seven days between removals.
Astigmatism causes light rays to scatter in different directions instead of focusing on the retina, which results in blurry vision. Soflens Toric lenses fight this problem by using a unique “Lo-Torque” design that provides outstanding stability for the lens when it is placed on the eyeball. This stability allows the lens to effectively act as a prism that correctly focuses light rays on the retina, therefore stopping the scattering of light that astigmatism causes.
As with most toric lenses, Soflens Toric are thicker at the bottom. The Lo-Torque design provides for a wedge-shaped tapered section on the front upper surface of the lens, which causes the contact lens to be thinner than usual towards the top. That minimizes the weight of the lens on the eye and maximizes comfort.
If you are concerned about the moisture level of Soflens Toric lenses, they do not disappoint in this regard. They are made of a polymer compound that is 66% water when fully hydrated (which explains the original Soflens 66 Toric name.) This water-absorbent substance will keep the lenses feeling comfortable and moist all day long. The Soflens polymer is also deposit resistant and permeable to oxygen, both of which are very important for extended wear lenses.
These lenses are colored the lightest shade of blue in order to make them more visible when handling them. This tint does not at all interfere with the performance of the lenses or the quality of your eye sight, but is useful for removal and disinfecting. The lenses also have three small guide marks at the bottom to easily guide you in placing them correctly on the eye, which ensures that the toric lenses will work properly.
If you think Soflens Toric lenses are for you, and especially if you intend to use them for extended wear, then you should speak with your eye doctor. Every person’s vision needs are different, and only your physician can tell you for sure whether you are eligible to use Soflens Toric for extended wear.
Soflens Toric are often 25% or more cheaper than other brands. If cost is a factor and you seek high quality toric lenses for your astigmatism, you will find them to be an excellent value. Their flexibility of daily or extended wear along with their great design makes them a great combination of convenience and sharp vision. Try them today!
Tags: Affordable, Astigmatism, Choice, Contact, Lenses, Soflens
Posted in Lasik Astigmatism | Comments Off