When it comes to picking a pair of contact lenses, there are a handful to choose from, each with its own distinct function. The most common are either soft or hard rigid gas permeable. What this means, is that the gas permeable solution allows more oxygen into the cornea and thus preventing the intense dry eye that many contact wearers are subjected to.
Soft contact lenses can be categorised into two types: daily and extended wear. Both are made in a similar manner that combines a thin, supple material and water. As the name implies daily wear is for daytime use only and must be taken out, cleaned and stored over night. Extended wear are made for overnight, however, this increases the risk of infection for many people. If you opt for extended wear, follow your doctor’s orders on exactly how long you can keep them on.
Hard contact lenses are made of a more rigid material than their counterpart. Though they offer crisper vision, the downside is that they are uncomfortable and are prone to slide out more easily. These lenses are also available in bifocal form for certain eye situations.
Daily wear soft lenses are the most comfortable of the bunch. Once the wearer pops them in it takes very little time, if any, for the eye to adjust. They are the best choice for an active lifestyle because they rarely slip out of place during exercise or other vigorous activities. They are also popular because they come in tints so that people can change their eye color if they like. The negative for daily wears is that people with severe eye problems may not have 100% clear vision. They also tear easily and need disinfecting with special cleaners to avoid infection. They need to be replaced anywhere from weekly periods to every few months.
Extended wear soft lenses have all the same pluses as the daily wear plus the wearer can keep them in for up to a week, although daily cleaning is recommended.
When it comes to contacts lens, there can be a number of problems any wearer can run across including discomfort, pain, redness, watering or changes in vision. No matter what type of lenses you have, it is highly recommended to follow your doctor`s orders closely and to clean, disinfect and store your lenses properly.
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Tony did his Ph.D. from the Honolulu University, Hawaii. After completing the doctoral degree, Tony joined Hewlett Packard as an Design Engineer. He left HP in 2004 to do independent consulting and then in 2006 joined CouponAlbum to help people save money.