Soft contact lens have been available since the 1970's. Advancements in the 1980's gave us high water and extended wear contact lenses.  The 1990's was an era of two week and other lens modalities.

The human eye requires 87 units of oxygen to breath at a "normal" level. Almost all existing daily-wear and disposable soft lenses use a plastic that delivers about 38 units of oxygen to an eye. The newest lens materials available since the summer of 1999 deliver 175 units of oxygen to a eye.

When you wear a lens that delivers 175 units of oxygen your eyes are healthier, whiter and better able to support a contact lens. The delivery of more than 4 times the oxygen of old lens materials allows some people to safely wear lenses for up to 30 continuous nights and days. 

Example: 
CIBA Night & Day and B&L PureVision lenses...some people can wear them for up to 30 nights of continuous wear.

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If you are not a patient in our office and wish to order lenses from us you are required to submit written documentation from your eye doctor stating that these lenses are suitable for your eyes.   Our fax number is 604-682-3314.      Void where prohibited or restricted by law.