AirOptix Night & Day

I agree with the previous poster. I've worn the Night&Day successfully for many years with success. The high oxygen transmission meant that your eyes rarely got tired, even after a long day.

But they've recently changed the design of the lenses.

They've added a blue tint which in itself is fine as the lens is easier to see.

The deal breaker is that they've etched a large 'OK' inversion indicator on the side of the lens. This is designed to help you see if the lens is correct - 'OK', or, if inside-out 'KO'. Here is the problem. The etching causes irritation, eventually leading to conjunctivitis. After 8 hours of wear, the lenses were completely unbearable.

I understand that the manufacturer is going to remove the 'OK' etching soon. Until this time, these lenses are unusable.

I have no idea why they changed this contact! When they were marketed under the name Focus Night and Day they were the best overnight contacts I have ever had and I've worn extended wear contacts for almost 20 years now. The new Air Optix made these some of the worst contacts I've ever had. I now have to go back to my Optometrist and try and find a new contact. Very, very disappointed and I wish my doctor had known they made such a drastic change, instead all he said was they added tint.