Good vision requires a healthy cornea, and a healthy
cornea needs a high level of oxygen. The contact lens acts as a barrier between
the eye and the oxygen the eye needs. When the cornea does not receive enough
oxygen, the eye may become stressed.*
*Other factors apart from oxygen transmissibility can effect eye health
A primary cause of corneal oxygen deficiency can be
wearing low oxygen transmissible contact lenses i.e. traditional daily wear soft
contact lenses.
In fact, 64% - 80% of contact lens wearers reported
experiencing one or more of these symptoms1.
Factors Affecting Risk of Corneal Oxygen Deficiency
On average, people wear their lenses for 14 hours a day
2
84% of people reported that they nap with their lenses on3
which also increases the potential for added eye stress.
(Contact lenses should be worn in accordance with your optometrists' recommendations)
Contact lenses that allow more oxygen to reach the eye may help protect against
the signs of corneal oxygen deficiency.
1. CIBA Vision. Data on file. 2003.
2. CIBA Vision. Data on file. 2002.
3. CIBA Vision. Data on file. 2004.
