I really hope you read this as it has been many months since you last posted! If he has amblyopia, did he patch as a kid? New studies show that patching is successful even in young adults - especially since they will be motivated enough to not cheat.
I'm almost 31, have amblyopia and while school was a nightmare, I went to college and even law school. The only challenge I really have today is driving (and no doctor takes me seriously when I say it's tough to drive due to lack of depth perception). I patched as a kid and then when I was your brother's age, I tried VT (Vision Therapy). It's controversial but that helped to eliminate tracking issues while reading and helped me regain binocularity (now, I can tell that I'm using both eyes instead of just the stronger one). I still favor the stronger one more out of habit but I CAN use the weaker one now.
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