Learning how to buy prescription glasses for astigmatism could help you achieve better vision and feel empowered every time you leave home. How to Buy Prescription Glasses for AstigmatismBuying a great pair of glasses takes some time. Why Eyemart Express Is a Top Provider of Astigmatism Prescription GlassesEyemart Express is one of the best places to go for astigmatism glasses. Do You Have to Get a Prescription for Astigmatism Glasses? You do need a prescription for astigmatism glasses because they have to correspond with your eyes’ unique shape.