Air Optix Multifocal Fitting Guide -- do you really know the recommendations for best fit? - Eyedolatry
9780323014403: Fitting Guide for Rigid and Soft Contact Lenses: A Practical Approach - Stein MD MSC(Ophth) FRCS(C) DOMS(London), Harold A.; Slatt MD FRCS(C), Bernard J.; Stein MD FRCS(C), Raymond M.; Freeman MD