Acuvue Oasys lenses are the most comfortable lenses on the market. Unfortunately, they cause more damage than any other lens I’ve seen. This occurs primarily because the edge of the contact lens steepens. In this case, you can see the damage from the edge hitting the eye. But because it is so comfortable, patients don’t let us switch them to anything else, even if they KNOW there’s a healthier alternative. These lenses are too dang comfortable! So my advice is to wear Acuvue Oasys lenses no more than 12 hours a day, 5 days a week. Those patients seem to do well with no damage. Whenever I see damage to the eyes, it’s always from wearing the lenses longer than that. And don’t wait to replace your lenses until the contact lenses are irritating and the eyes are already damaged. That’s like waiting to do an oil change until the car smokes. Or waiting to add chlorine to your pool until it’s filled with algae.