Naeser/Savini Toric Calculator
Version 1.2.3
PREOPERATIVE DATA
Patient name
Keratometric Astigmatism Scheimpflug Total Corneal Astigmatism
Surgeon
Enter K1 and K2 readings (n = 1,3375) Enter 3 TCA readings
Eye (RE/LE)
K1 (steep) K2 (flat) Magnitude Steep Meridian
Magnitude Steep meridian
Date of surgery
Measurement 1 Measurement 1
IOL
Measurement 2 Measurement 2
Axial length
Measurement 3 Measurement 3
Target Rx
Average
SICA = surgically induced corneal astigmatism
(= corneal astigmatism induced by the incision)
Incision SICA
        Vectorial average of astigmatism    
Incision meridian                  
Formula Costants
Optimized KA Scheimpflug Total Corneal Astigmatism
pACD
Diopters Meridian
Diopters Meridian
Surgeon Factor
Corneal astigmatism Corneal astigmatism
A-constant
Target astigmatism Target astigmatism
IOL alignment meridian
       
PREDICTED RESIDUAL REFRACTIVE ASTIGMATISM
         
Optimized KA
    Scheimpflug Total Corneal Astigmatism
          IOL Cylinder Axis IOL Cylinder Axis
         
         
         
         
         
         
       
         
       
SOURCES
Savini G, Naeser K, et al. Optimized keratometry and total corneal astigmatism for toric intraocular lens calculation. JCRS 2017;43:1140-1148
Savini G, Naeser K. An analysis of the factors influencing the residual refractive astigmatism after cataract surgery with toric intraocular lenses. IOVS 2015;56:827-835
DISCLAIMER
The information and/or materials on this site are provided without warranty of any kind, express or implied. 
Dr. Kristian Naeser and Dr. Giacomo Savini make no warranty that the calculator is error free and are not liable for damages of any kind, 
whether indirect or consequential, arising from the use of information supplied herein, or for any errors or omissions.


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