Pre-Op
Calculator
LASIK / PRK / ICL Treatment Planning
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This is the Pre-Op Calculator
↗ Open Mono Planning
Patient
Age
Dominant Eye:
not set
Right Eye
Dominant
Dominant
OD
I-S Ratio (iDesign)
Keratometry
Flat K (D)
Steep K (D)
Axis (°)
Axial Length (mm)
ACD (mm)
Manifest Refraction
awaiting refraction
+ cyl
− cyl
SPH (D)
CYL (D)
Axis (°)
SE
Thin Pach (μm)
Ablation
—
μm
PTA — PRK / LASIK
—
%
—
Residual — PRK
—
μm
—
Residual — LASIK
—
μm
—
Post-Op K Tracker
—
D
—
Left Eye
Dominant
Dominant
OS
I-S Ratio (iDesign)
Keratometry
Flat K (D)
Steep K (D)
Axis (°)
Axial Length (mm)
ACD (mm)
Manifest Refraction
awaiting refraction
+ cyl
− cyl
SPH (D)
CYL (D)
Axis (°)
SE
Thin Pach (μm)
Ablation
—
μm
PTA — PRK / LASIK
—
%
—
Residual — PRK
—
μm
—
Residual — LASIK
—
μm
—
Post-Op K Tracker
—
D
—
Disparity Between Eyes
OU Comparison
K Diff OU
—
D
Axial Diff
—
mm
Axial → Diopters
—
D
Total Power Disparity
—
D
Status
—
Corneal vs. Refractive Cylinder
Threshold: > 1.00 D suggests accommodation / internal astigmatism — possible early touch-up risk
Right Eye · OD
Corneal Cyl
—
Refractive Cyl
—
Δ Disparity
—
—
Left Eye · OS
Corneal Cyl
—
Refractive Cyl
—
Δ Disparity
—
—
Pentacam / Belin-Ambrósio Risk Screen
Tomographic indices · LASIK vs PRK recommendation
Patient advisory factors (informational, do not change verdict)
High-risk profession
Contact sports
Corneal scar / trauma
Severe dry eye / EBMD
Recurrent erosion
Prior corneal surgery
Right Eye · OD
D (final)
Da
Db
Dp
Dt
Awaiting tomography inputs
Left Eye · OS
D (final)
Da
Db
Dp
Dt
Awaiting tomography inputs
Refractive Procedure Recommendation
Metrics-driven · LASIK / PRK / ICL
Right Eye · OD
Awaiting metric inputs
Left Eye · OS
Awaiting metric inputs
ICL Eligibility Screen
SE ≤ −4.00 D · ACD ≥ 3.00 mm · AXL > 26 mm flag
Right Eye · OD
SE ≤ −4.00 D
—
—
ACD ≥ 3.00 mm
—
—
Axial Length > 26 mm
—
—
Awaiting inputs
Left Eye · OS
SE ≤ −4.00 D
—
—
ACD ≥ 3.00 mm
—
—
Axial Length > 26 mm
—
—
Awaiting inputs
Patient Information
Name
ID / MRN
DOB
Date
Procedure
Eye(s)
Surgeon
Data Entry / Verified
Notes / Auto-Ref & K's / Zones / Prep & Timeout