An extremely important (and grave) misunderstanding is that "eye driness" is just a feeling of burning or similar. Tears are a crucial part of the vision. With

An extremely important (and grave) misunderstanding is that "eye driness" is just a feeling of burning or similar. Tears are a crucial part of the vision. With less tears, the eye has worse vision. So one can end in a paradoxical situation where they have a better vision in theory (and tests!), but in practice, they may see considerably worse. And there's nothing one can do - eye drops only last a short amount of time. I had considerable eye dryness that improved over several (5+) years, which is almost entirely recovered. A couple of years ago I've tried contacts and they wouldn't hold (it wasn't the case pre-op). The (licensed) doctor was a liar (about the risks), and they actually didn't care about me post-op.