The wholesale jerseys China use cheap mlb jerseys of cheap jerseys contact lenses High-leverage in I our eyes helps to get rid of the problem of carrying spectacles but it has some of the advantages and disadvantages also. The contact lenses move with our eye and there are no frames to obstruct the vision. They do also not fog up, like glasses and get splattered by mud or rain. Contact lenses look better than glasses and offer better eyesight.
You have to take care of these lenses also. Contact lenses require longer initial examination and more follow-up visits to maintain eye health compared to glasses. You have to take frequent appointment for follow-up care and clean and store them properly. Disposable or planned replacement lenses need to carefully follow the schedule for throwing away used lenses.
There are many different types of lenses having different properties. Here are the different lenses with their advantages and disadvantages.
Types of Contact Lenses – Advantages and Disadvantages
Rigid gas-permeable (RGP)
These lenses are made of lightly flexible plastics that allow oxygen to pass through to the eyes.
Advantages- They have a clear and sharp vision and are comfortable to wear. They have a short adaptation period and correct most vision problems. These lenses are easy to put on and hence are durable with a relatively long life. They are also available in various tints and bifocals.
Disadvantages- The disadvantages of these lenses are that they require consistent wear to maintain adaptation, can slip off center of eye more easily than other types of lenses, debris can easily get under the lenses and require frequent office visits for follow-up care.
Daily-wear soft lenses
These lenses are made from soft, flexible plastic that allows oxygen to pass through to the eyes
Advantages- They have a very short adaptation period, more comfortable and more difficult to dislodge than RGP lenses and are available in various tints and bifocals.
Disadvantages- they do not correct all vision problems so vision may not be as sharp as with RGP lenses. They also require regular office visits for follow-up care. These lenses spoil easily and must be replaced.
These lenses are available for overnight wear in soft or RGP lenses.
Advantages- These types of lenses can usually be worn up to seven days without removal.
Disadvantages- they do not correct all vision problems and increases risk of complication. They also require regular office visits for follow-up care and require regular monitoring and professional care.
These lenses are soft lenses worn for an extended period of time, from one to six days and then discarded.
Advantages- They requires little or no cleaning. If wearing instructions are followed carefully, they will cause minimal risk of eye infection. They are also available in various tints and bifocals.
Disadvantages- Their vision may not be as sharp as RGP lenses and do not correct all vision problems. The handling may be more difficult.
These lenses are soft daily wear lenses that are replaced on a planned schedule. They must be replaced either in every two weeks, monthly or quarterly.
Advantages- They require simplified cleaning and disinfection and is good for eye health. They are available in most prescriptions.
Disadvantages- their vision may not be as sharp as RGP lenses and do not correct all vision problems. Their handling may be more difficult compared to other lenses.
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