Could pupil dilation be the cause of my inaccurate eyeglass prescription

The last two times I got a new prescription the first try was way off. Could this be due to the eye drops? Or is it just communications? I am extremely myopic and have astigmatisms in both eyes. (I'm not going to pretend I know the right terminology for all this stuff.) I had an exame a few weeks ago, took the prescription to my optician and ordered two new pair of glasses to replace the ones I have: one pair of bifocals for distance & computer screen, a second pair for computer screen & reading. The new distance glasses were fitted yesterday, and they were a disaster: I couldn't read three inch lettering from 15 feet.

I had a similar issue the last time -- same doctor. It cost me less that time because I was only getting one pair of bifocals. That time, the ophthalmologist basically presented it as a communications problem -- I didn't explain what I really wanted the lenses for. I get really agitated with issues relating to my eyesight, so I don't remember clearly why I didn't challenge this.

It's occurred to me since yesterday that the issue could be due to dilation. I remembered that my vision is extremely poor after I've been dilated. I can't focus on anything -- can't read road signs at all (meaning, even very large print ones), and dark glasses are very little help. I basically have to plan on not seeing anything much for several hours.

Is it possible this is the reason for the bad prescriptions?