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Q: Are there contact lenses which allow more oxygen to reach the eye?
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Silicone Hydrogel Contact Lenses
Contact lenses constructed of silicone hydrogel are considered to be much more gas permeable than those constructed of plastics. This is important because oxygen is essential for corneal health. Traditional plastic contact lenses relied on the water present in the plastic to transmit oxygen to the cornea. However, silicone is oxygen permeable meaning the cornea receives oxygen through the water as well as the silicone. As a result, these contact lenses can be worn for extended periods of time because the cornea receives so much oxygen.
Q.
I have bad habits with my contacts. I wear them longer than the 30 recommended days and often sleep with them in (5 or 6 nights a week). I have been doing this for about a year. I was wondering how dangerous these practices really are. Am I causing damage to my eyes?
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Do I use my eyeglass prescription to order contacts? Are they the same, or 2 different prescriptions? Thinking of buying contacts :)
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Is it appropriate to ware contact lens to play football ? Is it safe to my eyes ?
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I wear disposable contacts and was wondering why there are letters on my contacts? And if it would be bad for my vision at all?
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on a contact prescription, which is for the left eye and which is for the right. my prescription has OD -1.75 AND OS -1.50
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I have my contact lenses sent to me in 3month batches. I have noticed on the batch I have just received that the base curve measurement on the left eye packet is 8.7 when it should be 8.3 like the right one. Will they be ok to wear? or should I get them changed?
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