Toric contacts are meant to correct slightly higher amounts of astigmatism in your optical prescription. If you have no astigmatism (CYL and AXIS on your glasses RX is blank, SPH or DS) you do not need toric lenses. Further, if your astigmatism correction is low, it can be corrected in other ways than using a toric lens. This is one of the reasons your contact lens prescription numbers can differ from your glasses prescription numbers.