I've used Opti-free express in the past, but am currently using Renu. I haven't had any problems with either of them.
You might want to ask your eye doctor for a sample so you don't have to buy one unless you are sure you can use it. Or try calling or emailing the manufacturer and asking them for a sample or some coupons.
You might want to ask your eye doctor for a sample so you don't have to buy one unless you are sure you can use it. Or try calling or emailing the manufacturer and asking them for a sample or some coupons.