Yes this is not uncommon at all in pediatric ophthalmology. Your child is at high risk of growing up with reduced vision in one or both eyes (amblyopia) You child needs to be under the care of a highly trained pediatric ophthalmologist. Glasses, patching will be necessary. If you live in a developed country with a pediatric refractive surgery unit sometimes laser treatment can reduce the high cylinder power (called astigmatism). The most common cause of this is that the cornea on the front of the eye is not round or spherical but aspherical like an American football. It sometimes can be due to a disease called keratoconus. ALSO this runs in families. If you have other children have them checked. If you have nieces and nephews tell their parents and have them checked.