I see it's your first post here so welcome on this forum.
Not to be rude, but there are plenty of post in this section dealing with class 1 vision requirements that you will have difficult in reading them all. There are many restriction applying on vision, so the best for you is to take a look at the CAA medical dept. website where you will easily find all the info you need.
Medical | Safety Regulation
But of course, if you have some specific question, then this is the best place to ask
