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Evaluation of the QuickSee portable autorefractor system in a pediatric population
Alex Loayza1, Alston Lewis1, Rupal H Trivedi1
1Department of Ophthalmology, Storm Eye Institute, Medical University of South Carolina, Charleston, South Carolina.
Insights
The QuickSee system accurately detects refractive errors in children, showing good agreement with cycloplegic retinoscopy. This platform effectively identifies significant vision issues in pediatric patients.
Area of Science:
- Ophthalmology
- Pediatric Optometry
- Diagnostic Technology
Background:
- Refractive error is a common vision problem in children.
- Accurate detection and measurement are crucial for timely intervention.
- Existing methods may have limitations in clinical settings.
Purpose of the Study:
- To assess the diagnostic accuracy of the QuickSee platform for refractive error detection in children.
- To compare QuickSee measurements against the gold standard cycloplegic retinoscopy.
- To evaluate the platform's performance in a real-world clinical environment.
Main Methods:
- 157 children aged 3-17 underwent autorefraction using QuickSee (QS/QSF).
- Ophthalmic examinations included cycloplegic retinoscopy for comparison.
- Bland-Altman plots and ROC curves analyzed agreement and accuracy.
Main Results:
- QuickSee demonstrated high testability (98.1%) and moderate-to-good agreement for spherical equivalent and J0.
- The system achieved an area under the curve >0.9 for detecting hyperopia, myopia, and astigmatism.
- Sensitivities and specificities exceeded 0.8 for various refractive error levels.
Conclusions:
- The QuickSee system is effective in identifying significant refractive errors in a pediatric population.
- The platform shows promise as a reliable tool for pediatric eye examinations.
- Further validation may support its integration into routine clinical practice.
Purpose:
To evaluate the QuickSee platform's ability to detect and measure refractive error relative to gold standard cycloplegic retinoscopy in a pediatric population in a clinical setting.
Methods:
Children 3-17 years of age underwent visual acuity screening, autorefraction by the QuickSee (QS) or QuickSee Free (QSF), and complete ophthalmic examination, including cycloplegic retinoscopy and refraction. The agreement of the results was evaluated by Bland-Altman plots. Sensitivity and specificity for detecting myopia, anisometropia, and astigmatism were calculated based on modified Orinda and AAPOS 2021 guidelines. The overall accuracy of detecting refractive error was analyzed with receiver operating characteristic curves.
Results:
A total of 157 children (mean age, 7.58 ± 2.62 years) underwent autorefraction by the QS system (QS/QSF), with a testability of 98.1%. Moderate-to-good agreement was seen in spherical equivalent (SE) and J0 between the QS system and retinoscopy. The slightly negative bias for SE and J0 suggests underestimation of QS measurements relative to retinoscopy. The area under curve was >0.9 for all definitions of hyperopia, myopia, and astigmatism. The QS system had sensitivities and specificities >0.8 for hyperopia, myopia, and astigmatism at all levels of refractive error considered. Using modified Orinda and AAPOS 2021 referral guidelines, the QS system demonstrated sensitivities of 89.2% and 94.4%, and specificities of 56.5% and 68.6%, respectively.
Conclusions:
In our pediatric study cohort, the QS system effectively identified significant refractive error.
