Having trouble seeing the reticle

A good, no a perfect image, still has to travel through a bad eye. An astigmatism is a wart on your cornea that distorts the image before it is projected onto your retina. It has to be corrected in your eyeglasses. I don't care how old or young you are, ask an optics expert, or eye doctor, if anything I said was incorrect. Even top notch astronomical eyepieces (Tele-Vue) are equipped to receive a personally ground lens for astigmatism, so that you don't have to wear your glasses for all night viewing, and you can get closer to the eyepiece than when wearing glasses.
When I shoot or spot I have found doing so without my glass greatly improves resolution plus it makes 500yd bullet holes look like 400 yds. Try it.
 
I hope we answered the question of the OP but most of the posts seem to be on the "glasses on versus glasses off" point. Since that seems to be the main discussion at this point I will add my thought. I mostly shoot from the bench and I watch my wind flags (mainly the one at about 20 yards) with my non dominant eye. I shoot both eyes open. If I did not have my glasses on I would not be able to see the flag clearly enough to see what it is doing. But for safety reasons alone I would not remove my glasses. It's one of the many things we all get to make our own decision about but my position is people without poly carbonate prescription lens should wear safety glasses when shooting.
 
Read View attachment How-to-adjust-the-Eyepiece.pdf. Because of astigmatisms I see double horizontal reticle lines and I can adjust most of it out with the ocular. I shoot with both eyes open. I now have developed diplopia (double vision) Have not had prisms put in my prescription, yet. I am still shooting a scoped rifle with both eyes open. I am not driving and wearing a patch causes nausea and dizziness. Ageing!!!