Primary knowledge of astigmatism contact lenses

Sunday, February 7th, 2010 at 2:01 pm Post in Contact Lenses

Toric contact lenses for astigmatism correction are available from various brands, with specific materials, designs and features. In general, toric lenses are designed to maintain stable on the cornea. However, a small portion of toric lens wearers may experience lens rotation, which is surely to affect vision quality. In this case, these individuals should see a contact lens specialist to search out the underlying cause.

Contact lenses for single vision correction have been around for many years. Currently, there are also bifocal contact lenses available both in gas permeable and soft toric types. These bifocal contact lenses as well as bifocal eyeglasses are capable of correcting presbyopia. What’s more exiting, monovision can be applied to bifocal contact lenses, offering more custom options.

Since eyeglasses can not “correct” astigmatism, they only can compensate for it, some people may choose “plain old contacts” to correct this vision problem because modern contacts such as toric lenses are much more expensive. However, the most significant drawback of those plain old contact lenses is that they bring blurry vision. In fact, clear vision from modern contact lenses deserves the extra cost.

Many people are attracted by the convenience of sleeping in contact lenses, because daily removal is somehow bothersome. Nowadays, contact lenses are also provided in extended wear styles. Both toric contact lenses and rigid gas permeable lenses are available. The common feature of these two types is that they allow more oxygen in the eye. Most of the extended wear lenses are approved to last up to six days without removal. Even wearing extended contacts, regular rinsing of eyes with saline is also needed to remove debris and bacteria. All in all, extended wear is satisfying that it offer clear vision upon awakening.