M1911
Moderator
That depends upon the extent of your astigmatism. I've got astigmatism but I can still use red dots.One consideration with red dots is that they don't work for folks with astigmatism, or amblyopia.
Astigmatism makes red dots look blurry. It can be corrected/fixed with lenses/glasses but if your vision is 20/20 and you have astigmatism, chances are you're not even aware of it.
Amblyopia is condition where one eye is slower to focus than the other. Extreme case of amblyopia is called "lazy eye". This condition makes it difficult to find the dot with both eyes open and cannot be corrected with glasses. The good news is that you can just use the one eye closed approach. Also, mild cases of amblyopia can be corrected by regular training. I have amblyopia and it took me a good 6 months(I'm old) of training before I could shoot red dot both eyes open without double vision.