Is this good to put in the additional information section on the common app

During my freshman year, I struggled a lot because of my vision problems that made it difficult to see and focus in class. At the time, I didn’t realize how much it was affecting my performance at school and didn’t tell my parents until later. Once I got my glasses, I’ve had a much easier time learning and maintained a much stronger academic performance ever since.

I had mostly Bs and Cs freshmen year but the rest of high school it was mainly A's and some B's