IOL Calculator for Eyes with Prior RK
(Your data will not be saved. Please print a copy for your record.)
Please enter all data available and press "Calculate"
Doctor Name
Patient Name
Patient ID
Eye
IOL Model
Target Ref(D)
Pre-RK Data:
Refraction
Sph(D)
Cyl(D)
Vertex (If empty, 12.5 mm will be used)
Post-RK Data:
Refraction
Sph(D)
Cyl(D)
Vertex(mm)
Topography
EyeSys
EffRP
Average Central Power*
Atlas Ring Values
1mm
2mm
3mm
4mm
Pentacam
PWR_SF_Pupil_4.0 mm Zone**
CT
_MIN
**
OCT (RTVue or Avanti XR
Net Corneal Power
Posterior Corneal Power
Central Corneal Thickness
Optical/Ultrasound Biometric Data:
Ks
K1(D)
K2(D)
Device Keratometric
Index (n)***
1.3375
1.332
Other
AL(mm)
ACD(mm)
Lens Thick (mm)
WTW (mm)
Lens Constants***
A-cons (SRK/T)
SF (Holladay1)
*Not SimK values; average central corneal powers from other devices.
**PWR_SF_Pupil_4.0 mm Zone refers to the Pentacam Power Distribution display for the Sagittal Curvature (Front) Mean (Km) value at a 4.0 mm zone and centered on the pupil. Click on PWR_SF_Pupil_4.0 mm Zone to see this topographic display. CT
_MIN is the minimum central corneal thickness in microns as displayed by the Pentacam.
***Enter the constant available; the
other will be calculated. If ultrasonic AL is entered, be sure to use your ultrasound lens constants.