Naeser/Savini Toric Calculator
PREOPERATIVE DATA  
Patient name Keratometric Astigmatism Total Corneal Astigmatism
Surgeon Enter K1 and K2 readings (n = 1,3375) Enter 3 TCA readings
Eye (RE/LE) Magnitude Meridian
Magnitude Steep meridian
Date of surgery K1 (steep) Measurement 1
IOL
K2 (flat) Measurement 2
Axial length
Measurement 3
Target Rx
SICA = surgically induced corneal astigmatism
(= corneal astigmatism induced by the incision)
Incision SICA [ ? ]
               
Incision meridian                
      CALCULATED DATA  
Formula Costants
Optimized Astigmatism 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     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