My daughter has cranial nerve number 4 eye palsy. Her eyes are walleyed after the ball served hit her in the head. She is seeing double and her eyes don't move together. The eye specialist did a lot of tests. She had to look into a machine and click when she saw a letter flash. She did color testing. He looked into her eyes

with a thing on his head. She covered eyes and read charts and looked in a distance and he measured her eyes. I was amazed. He got measurements and had bifocals and prisms glasses made. They are helping. Now she is doing visual exercises. He said she may need eye muscle surgery. They are over correcting.