Online Alcon ToricOL Calculator (Barrett/ Holladay I Formula)

The Alcon Online Toric IOL Calculator will choose appropriate Toric Lens in IQ, SA6A, ReSTOR +2.5 or +3.0 and PanOptix Toric but inserting the IOL Spherical Equivalent Power (usually from the IOLMaster) and Surgically induced Astigmatism which is NOT calculated for you anymore. (The Software redirects you to the Hill Site ( which needs from the user to register (free of charge)



Additional information

online IOL Calculators: need to register