I've had some MDA from Europe for a while now, about 6 months. Took some with some mates about 2 months ago. We had about 90mg each( + / - 10mg) in a single dose taken orally. The come up starts after about an hour and comes on in waves. You feel something slightly, then sober, then a little more, then sober. Its like slipping in and out of being sober and rolling. Lasted about 6 hours (high) with some residual stimulation for about 2 -3 hours afterwards. None of us mentioned any visuals.
I've heard reports about people feeling like they're wearing glasses when on MDA. I too felt a little of this and I think its to do with the muscles around your eyes contracting slightly.
That's interesting I've never heard of people thinking they're wearing glasses, i used to see my friends wearing them visually. Also saw random items of furniture on club floors etc
Feeling like your wearing glasses is not a typical effect of MDA :D - imagining people are wearing glasses is (sometimes they have a beard?). Smoke people often show up just to remind you that your having a blast.