1. Corneal topography using computer analyzed rasterstereographic images;Warnicki;Appl Opt,1988
2. Corneal topography using rasterstereography;Arffa;Refract Corneal Surg,1989
3. Corneal topography using a projected grid;Warnicki,1992
4. PAR corneal topography system;Belin,1995
5. The PAR Technology Corneal Topography System;Belin;Refract Corneal Surg,1992