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§Model Card

Strabismus Surgical Planning AI Platform

Strabismus screening (classification), deviation angle estimation, and exotropia surgical target angle prediction

Mao K. · 2021 · China · doi:10.21037/atm-20-5442
Open DOI
Classification CNN External photo Internally validated
More attributes
Anatomy · EOM/StrabismusConditions · StrabismusSingle-centern = 3279 patients · 5,832 images images
§01Overview

Brief overview

Mao and colleagues developed a three-headed Inception-ResNet-V2 platform that screens for strabismus, estimates deviation angle, and predicts the exotropia surgical target angle, all from corneal light-reflection photographs. The model was trained on 2,154 patients retrospectively and validated prospectively on 323 patients at the same center, achieving AUC 0.98 for screening, deviation-angle correlation r 0.95–0.98 against the prism cover test, and surgical-target-angle correlation r 0.76–0.86. It is the highest-quality oculoplastic AI study in the eyemodelhub corpus to date by APPRAISE-AI score, principally because of the prospective validation and the breadth of clinically relevant tasks evaluated.

§02Performance
Headline performance

Screening: AUC 1.00 (retrospective) / 0.98 (prospective); accuracy 99% / 97%.

Full metrics — as reported
Screening: AUC 1.00 (retrospective) / 0.98 (prospective); accuracy 99% / 97%.
Deviation regression: r=0.95–0.98; mean error ~2.6–2.9°.
Surgical target angle: r=0.76–0.86; mean error ~2.3–2.5°.
Calibration · Uncertainty
Not reported.
Bias · Fairness
Not reported.
§03Data & Validation
Study designDiagnostic accuracy study
Center typeSingle-center
Patients3279
Images / eyes5,832 images
Split70/15/15 + retrospective hold-out test set + prospective same-center hold-out test set
Reporting frameworks None stated
Age rangeRetrospective: mean 13.4 Prospective: mean 14.8
Sex (% female)Not reported
Race / ethnicity reportedN
Subgroup performanceN
§04Deployment
Deployment maturity
  1. Concept
  2. Prototype
  3. Internal val.
  4. External val.
  5. Regulator
  6. Clinical
Regulatory status
None No FDA / Health Canada / CE clearance.
Artifacts & license
Code repository none
Pretrained weights none
Live demo none
License Not specified
§05Quality Review · APPRAISE-AI
Total score
47 /100 Moderate
ClinicalDataMethodRobust.Report.Repro.
Sub-domain scores
Clinical relevance 4/4 100%
Data quality 12/24 50%
Methodological conduct 5/20 25%
Robustness of results 6/20 30%
Reporting quality 12/12 100%
Reproducibility 8/20 40%
Why this score?

The APPRAISE-AI tool grades AI/ML medical studies across 24 items in 6 subdomains, scored independently by two reviewers. The total reflects the methodological transparency of the publication — not the underlying clinical value of the model.

How to read this: high scores in clinical relevance and reporting with low scores in methodological conduct, robustness, or reproducibility is the dominant pattern in ophthalmic AI today.

Quality bands: Low <40 · Moderate 40–59 · High 60–79 · Very High 80+. Most published ophthalmic AI sits in the Low–Moderate band; studies that break into High typically combine multi-center datasets, prospective evaluation, and open-source release.

§06Full Metadata
Citation & identification
Bibliographic record
Model IDoculoplastics_mao_2021
Full author listYang, Y., Guo, C., Zhu, Y., Chen, C., Chen, J., Liu, L., Chen, L., Mo, Z., Lin, B., Zhang, X., Li, S., Lin, X., & Lin, H.
JournalAnn Transl Med
DOI10.21037/atm-20-5442
ConditionsStrabismus
Architecture
Model internals
Architecture familyCNN
Architecture detailInception-ResNet-V2 CNN with three output heads
Funding & conflicts
Disclosures
FundingNational Key Research and Development Program of China (2018YFC0116500); the National Natural Science Foundation of China (81770967); the Science and Technology Planning Projects of Guangdong Province (2017B030314025, 2018B010109008, 2019B030316012); Guangdong Science and Technology Innovation Leading Talents (2017TX04R031)
Conflicts of interestNo conflicts
Card lifecycle
Status, version, reviewers
Card statusPublished
Card versionv1.0.0
First added2026-04-28
Last reviewed2026-04-28
Reviewersattribution opt-in pending
Update history
Card changelog
  • 2026-04-28 initial publication (v1.0.0)
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