Hi Renato,
I have to say that I have just no problems with my glasses. I am surprised that you do. On one occasion the lens maker made a mistake with the astigmatism correction and the vision made me feel very unstable. But that was easily fixed when the new lenses were fitted. I do seem to recall in the now distant past when I was but a lad, that my first pair of glasses with astigmatism correction took a little time to get used to, but since then no problems.
Nowadays, with progressive focus lenses in your specs. there are no problems moving your vision from distant (ie infinity) to close-up for reading. So, skies are beautiful (when Melbourne weather allows) and I can read a book with no discomfort. I do have a second pair of specs. specifically for when I'm reading music (I play clarinet in a couple of orchestras). These also have progressive focus lenses but are designed to give me a larger region of focus at the distance my music is from my face. But I still see clearly at a variable distance and can drive the car without problems while wearing them. The design of lenses nowadays is such that they can match virtually any requirement you might have.
I would suggest that if you do a lot of work in say a workshop, where distant vision is not critical, that you have another pair made which will accommodate your requirements.
When I'm at the scope just viewing, I can comfortably remove my glasses and just observe using my left eye directly at the eyepiece. The focus adjustment of the scope seems to be adequate to compensate for any inadequacy of my eye. ( so I don't especially need a large eye-relief e.p. )
But before any of this glasses bit comes the op. My eyes were done one at a time and a fortnight apart. I haven't looked back.
Incidentally, you can also get a photo-chromic coating on the lenses which allow them to darken when outside in the bright light, so you don't need sunglasses. (although you may still need them - or fit-overs - if driving your car as the windscreen filters out the UV.
Anything more you would like to know of my experiences, I'll always be happy to answer.
Don't worry, do it!
Robert