Simulator-first IOL counseling

Show patients
their vision
before surgery.

FDA SSED defocus curves, physics-based dysphotopsia simulation, and toric planning — one free, frictionless workflow.

26 IOLs with FDA SSED data No account required No PHI transmitted Free forever
IOLDx Vision Simulator Full Screen ↗
Street
Office
Reading
Night driving
Garden
Supermarket

Real-world distance vision

Clear, crisp vision at distance. PanOptix delivers excellent acuity for driving, faces, and outdoor activities.

Predicted VA
20/20
Excellent
Comparing: PanOptix ● Vivity ● Monofocal ●
Platform

Everything a surgeon needs.
Nothing they don't.

IOLDx connects clinical calculation to the patient conversation — in one seamless, free workflow.

FDA-grounded
📊
FDA SSED Defocus Curves
Defocus behavior sourced directly from FDA Summary of Safety and Effectiveness Data — not estimates. Compare up to 3 IOLs side-by-side with binocular summation modeling.
👁
Physics-based Simulation
PSF-modeled blur, halos, glare, and starbursts across 6 natural real-world scenes with one-tap crossfade.
📸
AI Biometry Import
Photograph your IOLMaster or Lenstar printout — axial length, K values, and ACD extracted automatically.
Four Formulas, One View
SRK/T, Hoffer Q, Holladay 1, and Haigis side-by-side. Formula spread matters clinically for short and long eyes.
🌀
Toric Planner
Astigmatism, SIA, rotation risk, and angle kappa — fully integrated, not bolted on.
🚩
Risk Flagging
Auto-alerts for post-LASIK, keratoconus, AMD, glaucoma, and ERM. Clinical decision support in the workflow.
Workflow

Biometry to patient consent
in four steps.

1

Enter Biometry

Manual entry, CSV import, or photograph your biometer printout for automatic AI extraction.

2

Select IOLs

26 lenses with clinical data. Overlay up to 3 IOLs on the FDA SSED defocus chart.

3

Simulate Vision

Distance, intermediate, near, and night across 6 natural scenes with dysphotopsia rendering.

4

Export & Counsel

Patient-friendly PDF, research CSV, or save session for outcomes tracking.

Evidence

Built differently than
every other calculator.

The difference is the link between calculation, lens evidence, and patient explanation.

FeatureIOLDx ClinicalGeneric CalculatorsBiometer SoftwareASCRS / ESCRS
SRK/T, Hoffer Q, Holladay 1, Haigis✓ YesVariesVaries✓ Yes
FDA SSED defocus data (26 IOLs)✓ YesNoNoNo
Physics-based vision simulation✓ YesNoNoNo
Dysphotopsia modeling (halos, glare, starbursts)✓ YesNoNoNo
Toric + angle kappa analysis✓ YesLimited✓ YesPartial
Patient counseling mode✓ YesNoNoNo
Browser-based, no install✓ Yes✓ YesNo✓ Yes
No PHI transmitted✓ YesVariesNoVaries
Free, no account required✓ Yes✓ YesNo✓ Yes
Surgeons Say

Trusted by cataract
& refractive surgeons.

★★★★★

"The defocus curve comparison alongside the vision simulator is something I haven't seen in any other free tool. It completely changes the counseling conversation."

MB
Cataract & Refractive Surgeon
Academic Medical Center, Southwest US
★★★★★

"All four formulas with actual FDA SSED data — not interpolated guesses — is the right approach. The formula spread is clinically meaningful for short and long eyes."

SK
Comprehensive Ophthalmologist
Private Practice, Optometry College Affiliate
★★★★★

"The toric planner with kappa angle and SIA is more complete than what we had. Risk flags for high HOA patients are exactly the pre-op reminders that prevent surprises."

TR
Cornea & Refractive Specialist
University-affiliated Practice

Start the conversation
that changes outcomes.

Free for all surgeons. No account, no PHI, no installation. Enterprise licensing available for institutions.

✓ FDA CDS Guidance Compliant ✓ AWS CloudFront · HTTPS Only ✓ No PHI Transmitted ✓ Free Forever