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.
The opinions expressed in WebMD User-generated content areas like communities, reviews, ratings, or blogs are solely those of the User, who may or may not have medical or scientific training. These opinions do not represent the opinions of WebMD. User-generated content areas are not reviewed by a WebMD physician or any member of the WebMD editorial staff for accuracy, balance, objectivity, or any other reason except for compliance with our Terms and Conditions. Some of these opinions may contain information about treatments or uses of drug products that have not been approved by the U.S. Food and Drug Administration. WebMD does not endorse any specific product, service, or treatment.
Do not consider WebMD User-generated content as medical advice. Never delay or disregard seeking professional medical advice from your doctor or other qualified healthcare provider because of something you have read on WebMD. You should always speak with your doctor before you start, stop, or change any prescribed part of your care plan or treatment. WebMD understands that reading individual, real-life experiences can be a helpful resource, but it is never a substitute for professional medical advice, diagnosis, or treatment from a qualified health care provider. If you think you may have a medical emergency, call your doctor or dial 911 immediately.