1. Wearer power measurement of progressive addition lenses;Bertrand,1998
2. Measurement of Progressive Addition Lenses;Fowler,1995
3. Modern metrology for Aspheric Spectacle Lenses;Guilino,1993
4. An optical method for mapping the power and cylinder of multifocal progressive lenses;Keren,1995
5. Traps in displaying optical performances of a progressive-addition lens