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Lenses with higher oxygen permeability help your eyes maintain better hydration and clarity over the day. They are less likely to cause end-of-day redness from oxygen deprivation, and for people who wear lenses from early morning to late evening, the difference in comfort can be noticeable.

Silicone hydrogel lenses generally hold up better across a longer wear day than conventional hydrogel lenses. The main difference comes down to how each material delivers oxygen.

Older lenses depended on water movement, while silicone hydrogel passes oxygen directly through the lens, which typically means less dryness and fatigue by the end of the day.

Yes. Silicone hydrogel toric lenses are made to correct astigmatism while still providing the same higher oxygen permeability as standard silicone hydrogel lenses. Your ECP can confirm which toric options fall within your prescription range.

They pass oxygen directly through the lens material to the surface of your eye.

Conventional hydrogels carried oxygen through water content, which meant they dried out faster and delivered less oxygen as the day went on. Silicone hydrogel lenses changed that by building oxygen permeability into the material itself, so your eyes receive more consistent airflow from the time you put them in until you take them out at night.