That plan sounds like
it will be very time consuming and expensive with very low success rate. Also astigmatism should not cause headaches that last to the next day and require imitrex.
I suggest you see a neuro-ophthalmologist as you may have an eye muscle disorder like convergence insufficiency. You can find one near you at www.geteyesmart.org
JCH MD
I too am experiencing headaches from wearing glasses. I need to use the computer many hours a day. I have astigmatism. The glasses do what they're supposed to bu they give me a headache. I sometimes switch to lesser strength readers to give my eyes a rest...but really doesn't stop the headaches. The headaches are bad and sometimes carry over into the following day..can only be relieved by imitrex. The optometrists I've seen have been no help. I'm wondering if I could get the minimal prescripttion to correct the astigmatism in a contact lenses, then use readers on top, as needed?
It is highly unlikely that you cannot be fitted by an optician with comfortable glasses (using different styles) your other options are: contacts, no glasses, refractive surgery like lasik
JCH MD