I had contacts & glasses, only for the last couple years. I started college at 29 (I'm 31 now) and was having horrible migraines...bad enough I vomited from them. Hence, contacts & glasses
My eyesight isn't so bad itself-I can see well without them, but I have astigmatism & light reflects in my eyeball "wrong" causing images (ESPECIALLY lights, tv, computer, etc) to blur terribly.
One time, driving home late at night, I came to a complete stop in the middle of the road, thinking I had come upon a DWI/seatbelt checkpoint. Nope, it was one police car who had someone pulled over. You can bet he questioned ME thoroughly when I thought there was more than one police car there. It was later when I talked to my eye dr that I found out why I saw lights all around me.
I can sit & read a book in daylight without glasses-I can see the print just fine.
eta: I have to wear toric lenses for contacts, which are very expensive. I cut up a VERY hot pepper for my parrot, then washed my hands & STILL ruined my contacts by getting them all peppery. that was another sight to see, I'm sure...me trying to get those peppery contacts out of my eyes.

I haven't gotten around to spending the extra $150 for contacts again.