Do you think I have a right to an exam exemption?

Yes, I have suffered from vision impaired problems in the past during my high school career and took full course loads in AP and IB classes. I think you do have a right to exam exemption OR accommodations which is what they would do for me. For sure, talk to a counselor/advisor/principal whoever before it adversely affects your GPA. Trust me i know this. I completely understand the doctors visits, more than average. Make your teacher/counselor aware of this, they will care more about you, and will be nicer to you in your course loads. it worked for me. They also provide a homeschool teacher for free who will help you in your school work and will turn your work in for you.