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Do I need prescription to buy contact lenses in US?


flamy

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Defined - Neovascularization is a condition of the cornea where blood vessels start to grow into the otherwise clear and translucent cornea. A common cause is anoxia - lack of oxygen from wearing contact lenses that do not breathe. It can affect as many as 50 percent of contact lens wearers after 20 years of wearing the old style of lenses. Switching to new high oxygen transmitting contact lenses is an important strategy for the treatment and prevention of Neovascularization Early Stages of Cornea Oxygen Deficiency Without enough oxygen, you might feel symptoms such as end-of day discomfort, irritation, dryness, and redness. Also known as corneal oxygen deficiency. In the long run, lack of oxygen may even cause complications. People who wear their contacts longer than the recommended wearing time are most at risk. O2 OPTIXâ„¢ is made with a revolutionary silicone hydrogel technology allowing 5 times more oxygen to reach the eye than the leading 2-week lens to help protect you from the signs and symptoms of corneal oxygen deficiency. Your eyes need oxygen to stay healthy and comfortable. But soft contact lenses create a barrier to the natural flow of oxygen between your eyes and the air around them. O2OPTIX provides the highest oxygen transmissibility of any 2-week soft contact lens, helping to keep eyes whiter, brighter and healthy-looking. It is the healthy choice for daily or occasional overnight wear.* Link: http://www.lensdesign.ca/optix.htm
Really ? So our eyes actually absorb oxygen from air rather than blood stream ? :hmmm: Need to read up on this.
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Happy diwali. :finger:
Diwali a festival celebrated to mark the victory of truth over evil...Sree pwning you...that means... I am done :yikes: :rose:
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