Premium IOL Decision Helper

A structured, evidence-conscious reference and decision-support tool for ophthalmologists, cataract and refractive surgeons, residents and clinical staff. It compares IOL concepts and named platforms, flags relative contraindications, generates preoperative checklists and produces a structured counselling report.

Fully offlineNo loginRule-based, transparent logicNo invented scoresEducational use only

–IOL platforms in database

–Interactive clinical cases

–Quiz questions

–Glossary terms

Terminology — read before using the tool

"Full Range of Vision" is not a uniformly defined scientific term. It is largely a marketing category; the app therefore always shows the actual optical principle.
"Diffractive" describes an optical principle, not a functional class. Diffractive lenses exist among EDOF, bifocal, trifocal and full-range designs.
Not every full-range IOL is trifocal, and not every EDOF IOL is non-diffractive.
No presbyopia-correcting IOL restores youthful accommodation.
Bench metrics (MTF, Strehl ratio, light-energy distribution) are informative but do not replace clinical outcomes, patient-reported outcomes or long-term follow-up.

Manufacturer & IOL database

Expandable cards for each platform. Evidence traffic light: Green — well supported Yellow — limited / early evidence Red — mostly manufacturer-reported / insufficient comparative data

Compare IOLs

Select up to four platforms. Ratings are qualitative categories (very good · good · functional · limited · unfavorable · insufficient data) — no invented numeric scores.

Patient Decision Helper

Enter the patient profile. The engine ranks all platforms with transparent, rule-based reasoning ("recommended because… / downgraded because…") and produces warnings, a tailored preoperative checklist and a printable report.

Decision tree

Guided step-by-step pathway. Click an answer to advance; the breadcrumb shows your path.

Clinical cases

20 interactive teaching cases. Choose your own strategy first, then reveal the model answer with best options, acceptable alternatives, less suitable choices, workup and risks.

Random case generator

Generates a randomized patient profile (including Biotech-specific preference variables). Commit to a strategy, then reveal a reasoned model solution produced by the same rule engine as the Decision Helper. Biotech products are ranked on equal footing with all other platforms.

Quiz

Optical principles

Monofocal optics

A single focal point, usually targeted for distance. Aspheric surfaces reduce spherical aberration. Best contrast transfer and lowest photic-phenomenon burden of all categories. Pseudoaccommodation (pupil, corneal aberrations, depth of field) provides some incidental intermediate function in selected eyes.

Enhanced monofocal ("monofocal plus")

A modified anterior surface (e.g., higher-order aspheric profile) slightly extends depth of focus toward intermediate distances while retaining a largely monofocal light distribution. No true trifocality; the boundary to EDOF is not sharply defined.

Diffractive optics

Concentric diffractive steps split incoming light into two or more diffraction orders (foci). Enables bifocal, trifocal and diffractive-EDOF designs. Inherent trade-offs: light loss to higher orders, contrast reduction and ring-shaped halos. Achromatic (chromatic-aberration-correcting) echelettes can partly offset contrast loss.

Refractive zonal optics

Distinct refractive zones or continuous power gradients create multiple foci or an elongated focus without diffractive rings. Typically more pupil-, centration- and angle-kappa-dependent than diffractive designs. "Purely refractive" does not automatically mean halo-free.

Wavefront-shaping / aberration-modulating EDOF

Controlled modulation of spherical aberration or a central wavefront-stretching element elongates the focal zone (e.g., non-diffractive EDOF). Generally favorable dysphotopsia profile but weaker fine near vision; residual astigmatism and slight hyperopia degrade performance disproportionately.

Defocus curve

Visual acuity plotted against defocus (vergence in D) describes the functional range of vision. Monofocal: single narrow peak. EDOF: broadened distance peak extending to ~-1.5 D. Trifocal: three peaks (distance, ~-1.5 D, ~-2.5 to -3.0 D). Binocular curves (including mix-and-match and mini-monovision) are broader than monocular curves.

Additions: IOL plane vs spectacle plane

Near additions quoted on the IOL plane (e.g., +3.0 D) correspond to roughly ~0.7× at the spectacle plane depending on eye geometry. Always distinguish the two when discussing reading distance.

Add-on (sulcus) IOLs

A supplementary IOL implanted in the ciliary sulcus in front of a capsular-bag base IOL. Dedicated add-on designs (convex-concave, large optic, undulating haptics) are not equivalent to placing a standard IOL as piggyback. More reversible than IOL exchange, but a second intraocular procedure with specific risks (pigment dispersion, iris chafing, IOP rise) and anatomical requirements (anterior-chamber depth, sulcus anatomy, zonular status, stable base IOL).

Evidence and limitations

What is well supported

Monofocal IOLs generally provide the best contrast sensitivity.
Trifocal IOLs generally provide the best near vision and the highest spectacle independence.
EDOF IOLs provide good intermediate vision.
Non-diffractive EDOF IOLs often have a more favorable dysphotopsia profile.
Residual astigmatism reduces the performance of premium IOLs.
Ocular comorbidity can limit suitability for multifocality.
Toric correction is clinically relevant for regular corneal astigmatism.
Add-on IOLs can treat postoperative refractive error and presbyopia secondarily.

Frequently marketing — or not yet sufficiently proven

"No halos" · "Vision like at 20" · "Perfect vision at every distance" · "No compromises" · "Best IOL in the world".
"Full range means youthful accommodation."
"More light utilization automatically means better subjective visual quality."
"Five foci are automatically better than three."
"Purely refractive automatically means no dysphotopsia."
"A new IOL automatically means better clinical results."

Biotech Healthcare / Biotech Vision Care — specific evidence notes

Scientifically / clinically plausible in principle:

Eyecryl SERT offers an extended focus centered on distance and intermediate vision.
Eyecryl ACTV uses a refractive-diffractive multifocal optic.
Optiflex Trio has a genuine trifocal optical concept.
Optiflex Trio Plus combines trifocality with an EDOF component.
Optiflex XTENSE Comfort Plus uses, per manufacturer, a purely refractive full-range EDOF concept.
Toric variants can correct regular corneal astigmatism.

Not yet sufficiently independently proven:

That Eyecryl SERT produces fewer dysphotopsias than all other EDOF IOLs.
That Eyecryl ACTV fundamentally causes fewer night-time halos than other multifocal IOLs.
That Optiflex Trio or Trio Plus cause fewer halos than PanOptix or AT LISA tri.
That Optiflex Trio Plus simultaneously achieves trifocal near performance and monofocal contrast.
That Optiflex XTENSE Comfort Plus offers full near performance with a monofocal-like night-vision profile.
That high manufacturer-reported satisfaction rates transfer to all patient groups.
That "glistening-free" automatically means better subjective visual quality.
That "full visual range" represents youthful accommodation.

Bench vs clinic: laboratory measurements such as MTF, Strehl ratio or light-energy distribution are important, but they do not replace clinical outcomes, patient-reported outcomes or long-term observation.

Glossary

Clinical disclaimer

This application serves exclusively medical education, structured clinical discussion and support of physician decision-making.

It does not replace:

a complete history,
clinical examination,
biometry,
corneal topography,
macular OCT,
glaucoma diagnostics,
individual IOL calculation,
manufacturer information,
regulator-approved product information (IFU/eIFU),
surgical experience,
individual patient counselling and informed consent.

The final IOL selection always rests with the treating ophthalmologist or surgeon.

Product availability, additions, materials, toric ranges and regulatory approvals can vary by country and over time. Manufacturer statements must be verified against the current official product information before clinical use. This application must not and does not issue any medical guarantee.

Manufacturer-reported features should always be interpreted together with independent clinical evidence, study design, follow-up duration and patient selection.