Yes they do last for longer, although as far as I can tell it stays, but its mainly noticeable in bright lighting and also my vision seems kind of misty, someone said it may be cataracts slow growing, I had been on a course of Accutane a while back. I was concerned about Macular degeneration.
This may be ophthalmic migraine if it lasts 20 minutes or more.
Dr. O.