The wait was ok but when my daughter went in for...

The wait was ok but when my daughter went in for her eye exam the doctor was getting mad because my daughter would get the letters wrong because she couldn't see ? My daughter even told me mom did you notice the doctor's tone when she was asking me to say the letters ? Not sure if the doctor was having a bad day or not but i don't think that was right to do to a 10 year old the girls in front desk and the one who helped us pick out the glasses were super nice