Ihave an RVO (Retinal Vein Occlusion) in my left eye and had to give up on my glasses mounted mirror. I'm not blind in my left eye but my vision is similar to looking through an automobile windshield while it's raining without windshield wipers.
I now use a Mirrycle mirror that mounts to my left brake hood.
I can use my right eye and see quite well. As in the photo, it's mounted on the left side brake.