GlossaryGlaucoma: A condition where abnormally high pressure of the fluid in the eye causes damage to the optic nerve, resulting in impaired vision and blindness.Neuroblastoma: Cancer that arises in immature nerve cells and affects mostly infants and children. Rhabdomyosarcoma: A malignant tumor of muscle tissue.Varices: Abnormally dilated (stretched) veins. Published on Jul 09, 2018