Numerical implementation of generalized Coddington equations for ophthalmic lens design P. Rojo, S. Royo, J. Ramírez & I. Madariaga a UPC-CD6, Center for Sensor, Instruments and Systems Development, Universitat Politècnica de Catalunya, Rambla Sant Nebridi 10 Terrassa E08222, Spain b Vallès Oftalmologia Recerca VO-R. Hospital General de Catalunya. 4th floor Green building, Room 387. C/Pedro I P...