My grand daughter is a albino with nystagmus. What is her vison if it states she need glasses with this RX: Distance - Right and Left SPH-4.25 CYL +3.25 Axis 90, Reading Trifocal and Addition Bifocal? Is she a 20/20 20/40 how do we find out. She is only 10 months old. I am just so worried for my love.