1. Vision with the TRUE VISTA bifocal IOL;Knorz MC;European Journal of Implantation and Refractive Surgery.,1992
2. Comparison of modulation transfer function and through focus response with monofocal and bifocal IOLs;Knorz MC;German Journal of Ophthalmology.,1992
3. Vision with bifocal intraocular lenses;Knorz MC;German Journal of Ophthalmology.,1993
4. Indications and contraindications for implantation of bifocal intraocular lenses [German];Knorz MC;Klin Monatsbl Augenheilkd.,1993
5. Results of a European multicenter study of the True Vista bifocal intraocular lens;Knorz MC;J Cataract Refract Surg.,1993