Gas Permeable Contact Lenses
The "hard ones" consist of a material dubbed as polymethyl methacrylate (PMMA) that was regarded as an indispensable substance priorn to 1971, the year when the regular soft ocular aid was introduced. The problem with PMMA was that it was very complicated to utilize as it did not permit any oxygen badly required to enter the eyes unlike the gas permeable contact lenses.
Gas permeable contact lenses are actually not novel in the industry as they were launched in late 1970's. However, this ocular aid is much newer than the regular soft. Most of this kind of tints is integrated with a comfortable plastic known as silicone. The mentioned element is porous to oxygen where the aftermath is healthier vision, avoidance to deposits and better durability.
It can never be denied that the regular soft is more famous than gas permeable contact lens. The reason is that this ocular aid is not that easy to wear so there is a call to adapt in a longer period. However, this kind of tint has several benefits such as the stiff component it is constructed of. Even when you do countless eye movements, it will still retain its contour due to its facet of crispiness.
Try stepping on gas permeable contact lens and you will discover that it is not that easy to break. Unbelievable as it may sound but it is brought about by certain materials that do not hold any water. Due to such, this ocular aid does not attract lipids and proteins that originate from the glands that excrete tears. As for the regular soft, when you tear it apart, it will only require a less amount of force.
For those people who obtain unsatisfactory results in wearing tints of the regular soft kind, they usually shift to an ocular aid which is porous to oxygen. This is especially true to individuals who are suffering from astigmatism where they do not achieve their desired sight sharpness. As for those who have presbyopia, they choose between designs of bifocal and multifocal which have been proven to work effectively.
Related Tags: contact lens, contact lenses, contact discount lens, cheap contact lens
Milos Pesic is an expert in the field of Snoring and runs a highly popular and comprehensive Snoring web site. For more articles and resources on Snoring related topics, Snoring Causes and Treaments, Natural Snoring Remedies and much more visit his site at:
=>http://snoring.need-to-know.net/ Your Article Search Directory : Find in Articles
Recent articles in this category:
- Contact Lens Advice to Alleviate the Misery of Hay Fever Eyes
For most of us, the summer sunshine is a welcome relief from the doom and gloom of the winter months - Change Your Eye Color With Colored Toric Contact Lens
Have you suffered from blurry vision even when you're wearing contacts? If you have you might ask y - The Final Assessment - the Examiner's view
Peter Chapman has written an insightful piece about the upcoming Final Assessments. As one of these - How To Improve Vision Through Eye Exercises You Can Do Anywhere
These eye exercises can be done almost anywhere or anytime. You engage in regular physical activity - Discount Color Contacts - How to Get the Best Deal
How it is safe to buy color contacts online?If you make comparison between online contact lens shops - A Guide to Sunglass Lens Add-Ons or Upgrades
So you have decided to step up and purchase a new pair of designer sunglasses. Sounds simple right, - Let's Take a Closer Look at Laser Eye Surgery
Our vision is probably the most utilized sensory faculty that we have. For most people the ability - Complications with LASIK
LASIK, surgery to reduce or eliminate the need for eye glasses, has become very popular over the pas - What Is Lasik Plus?
You have heard about Lasik surgery for several years and you know many people that have had this lif - Stagnant Liver Qi - The Cause of Many Eye Problems
Do you have a blockage in your liver qi?Disharmony in our health can often be traced back to stuck l
Most viewed articles in this category:
- Are you A Good Candidate For LASIK Surgery?
Do all people make good candidates for LASIK surgery laser vision correction? Not according to repor - Seeing Yourself in a New Light - The Advantages of Wearing Contact Lenses
"Gee whiz, look at his eyes""I can tell by the look in your eyes""Private eyes are watching you"We t - Critical Factors You Need To Consider Before Getting Laser Eye Surgery
The eyes are one of the most important and most used sensory organs we have. Thus it is absolutely v - Little Known Facts About Lasik Eye Surgery - Part II
Can Lasik eye surgery fix extreme nearsightedness? I heard it can't fully repair the problem.The sol - Critical Tips To Know Before You Purchase Contact Lenses Online
When you were still young, your parents probably encouraged you to eat plenty of green leafy veggies - Los Angeles Lasik Eye Surgery: Understand It
Throughout Los Angeles, lasik eye surgery is a fast growing procedure that more and more people are - Helping the Blind
For the last decade, groups of cell biologists, chemists and physicists all over the world have been - Get Your Vision Back: 5 Effective Exercises For Training Muscles In Your Eyes
You can save your vision and even improve it with special exercises because you can train any part o - Possible Effects of Laser Eye Surgery
What are the possible effects of laser eye surgery? Laser eye surgery is not as risky as it used to - Lasik Surgery Orange County Style
I am sure many of you have stories about the time you noticed that your sight wasn't what is used to
