Agreement between Pentacam and handheld Auto-Refractor/Keratometer for keratometry measurement Hassan Hashemi, Samira Heydarian, Abbas Ali Yekta, Mohamadreza Aghamirsalim, Mahin Ahmadi-Pishkuhi, Mehrnaz Valadkhan, Hadi Ostadimoghaddam, Ahmad Ahmadzadeh Amiri, Mehdi Khabazkhoob

Verification of conicoidal concave surfaces by keratometry William A. Douthwaite, Edward A.H. Mallen

Validation of keratometric measurements obtained with a new integrated aberrometry-topography system Einat Shneor, Michel Millodot, Meira Zyroff, Ariela Gordon-Shaag