Augentagesklinik Sursee

EyeNet, American Academy of Ophthalmology

American Society of Cataract & Refractive Surgery

The International Society of Refractive Surgery

Stanford University School of Medicine:

Massachusetts Eye and Ear Infirmary

The Eye Lab. Inc. K. Hoffer
Lens calculation software

Lens calculation page for medical doctors

Medical search engine

Federer & Partners,
Unternehmensberatung im
Gesundheitswesen AG

Arth-Goldau