研究目的
To develop an objective algorithm to discriminate the earliest stages of glaucoma using frequency doubling technology (FDT) Matrix perimetry and spectral domain-optical coherence tomography (OCT) technology to improve primary care detection.
研究成果
The predictive rules based on PCA of FDT Matrix or 3D OCT-2000 provide high sensitivity and specificity for early glaucoma detection, with combined use offering the best accuracy (AUC 94.27%). These rules can aid in developing software for improved diagnostic ability in primary care settings, though further validation is needed.
研究不足
The study did not consider test-retest variability; only a single test was performed. The sample was limited to eyes without other ocular diseases, and results may not generalize to all populations. Potential for optimization in algorithm refinement and validation in larger cohorts.
1:Experimental Design and Method Selection:
Prospective, clinical, and comparative study design. Patients were classified into three groups based on European Glaucoma Society diagnostic criteria. Functional and structural tests were performed using FDT Matrix perimetry and SD-OCT. Principal component analysis (PCA) and logistic regression were used for data analysis.
2:Sample Selection and Data Sources:
306 eyes from 161 patients aged 40 or older with specific inclusion criteria (e.g., best corrected visual acuity, refractive error). Excluded patients with other ocular diseases or poor test reliability.
3:List of Experimental Equipment and Materials:
Humphrey Matrix visual field instrument (Carl Zeiss Meditec), Topcon 3D OCT-2000 (Topcon Medical Systems), Goldmann applanation tonometry (AT 900, Haag-Streit AG), slit lamp, and statistical software (SAS v
4:4, R). Experimental Procedures and Operational Workflow:
All subjects underwent ophthalmic examination including visual field tests with FDT Matrix (N-30-F program) and OCT (3D-disc program). Pattern deviation plots were analyzed, and PCA was applied to extract features. Logistic regression models were developed for classification.
5:Data Analysis Methods:
Statistical analysis included t-tests, PCA, logistic regression, and calculation of sensitivity, specificity, and AUC using leave-one-out validation.
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