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Contacts are available for daily wear or extended wear. Well, what does this mean? Extended lenses can be worn from two to four weeks due to the material they are made of. These contact lenses allows more oxygen to reach the cornea of the eye, where as soft contact lens are made of materials that incorporate water.
Extended lenses are soften by water and this makes them to be more flexible allowing more oxygen to reach the cornea of the eye. Most individual's choose to wear their extended contact lenses about seven days before removing them. Contacts should be FDA approved. Extended contact lenses have been known to be worn for several days with no complications. Yes, you can sleep in extended contact lens but you stand a greater chance of eye infections and other complications. This is due to the lack of oxygen to the cornea at night while wearing contact lenses.
With the new technology , contacts have now been approved to being worn up to thirty days. These contact lenses are made of new super permeable silicone hydrogen materials. The cornea of the eye is allowed to get much more oxygen while wearing extended wear contact lenses. You should get around six times the amount of oxygen to the cornea than other disposable contact lenses. Bacteria is repelled much better with this new material than the old material.
Proper Care:
If one follows the eye doctor's instruction while wearing extended contact lens they can minimize the risk of infection by replacing and caring for the extended contact lenses. Studies have shown that most infections and other complications arise from improper care.
It may be best to wear extended wear lenses on daily basis with limited night wear. They serve their purpose well when it comes to traveling on vacations and napping during the day.
If you should notice any irritation to your eyes or lack of vision ,you should consult your eye doctor.
Contacts are made for everyone. If you have a astigmatism , where the eye has an inability to focus due to an abnormal shaped cornea , then you may have to wait to a future time to try wearing contacts. Contacts are in the process of being designed to help people that suffer from astigmatism.
Don't give up on modern technology. They will have you seeing better in no time. When that time comes , makes sure you use proper care to protect your eyes.
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