DON'T go here. It's a waste of money!! Dr Pernula: I went regarding cataracts. The results of which they told me the cataracts were not bad enough for surgery even though I'm having trouble seeing through my regular glasses day and night. Oh the brilliant thing they said was " I had 20/20 vision. And saw the same in my glasses and without them". I haven't had 20/20 vision in 32 yrs. There diagnosis dry eye and wait out the cataracts. I went to another doctor I'm schedule for cataract surgery and guess what I don't have 20/20 vision and no mention of dry eye!!!