Most of the time I can read the board at school but sometimes I have to squint a lot to read it. 90 percent of the time I can read it. When I squint to read it I'm the only person that has a problem seeing it.
What should i do?
Thanks for your Question
You should visit an optometrist. It seems you have some kind of refractive errors such as myopia and you need to wear eyeglasses.