Hey,
It's been years but i used to fly with a great guy that had one eye also. I'm sure that presents some problems. You probably already do these things but I'll put my 2 cents in anyway. (these apply to all of us old farts you know)

Be very familiar with your plane(s) and be cautious of your choices of plane in relation to your ability.

Pick your colors and contrasting color patterns wisely.

Land marks are your buddy (you know the old turn when you pass that tree kinda thing) Geometry works for location with a little practice.

When you first arrive at a new field (fun flys etc.) watch the other planes for a couple of minutes and scope out your land marks.

Warm up with your "go to " favorite plane first.

Years ago...David McDonald in Eldon, Mo. taught and soloed a kid with an eye disease that caused him to have severe tunnel vision. He was considered legally blind. His field of vision up close if I remember right was around 12 " dia. some bigger at a distance. This young man had small binocular apparatus glued to each lens of his glasses. He soloed on a Dynaflight Butterfly with a .25 2cycle on the nose. This kid was very bright and motivated. I recall he had problems with his custom glasses fogging in the hot summer so he pulled a servo motor out of a servo and made a tiny prop(fan blade) fastened this to a visor with a small battery...INSTANT DEFOGGER!
Now that is some commitment to the hobby and was quite inspiring.