Originally Posted by fschultz4is

currently, night & day offers the highest level of oxygen permeability on the market. Followed by biofinity and o2 optix. Oxygen might not be the issue with your friend. I had a patient that i tried every silicone hydrogel lens on to no avail in curing redness. Switched patient to clear care. Still no success. Put the patient in a one-day disposable lens, redness went away. In the end, it was allergies, not oxygen at the root of the redness. I now start all my patients in clearcare to save the time of switching solutions to eliminate the problem. I can go to mechanical issues right away.