Accuracy of Cirrus HD-OCT and Topcon SP-3000P for measuring central corneal thickness
| Autor: | Miguel Ángel Sánchez-Tena, Javier Ruiz-Alcocer, Jorge A Calvo-Sanz |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2017 |
| Předmět: |
medicine.medical_specialty
Original article Intraclass correlation Spherical equivalent 03 medical and health sciences Corneal pachymetry 0302 clinical medicine Optics Optical coherence tomography lcsh:Ophthalmology Ophthalmology Ultrasound pachymetry medicine lcsh:QC350-467 Interchangeability Microscopio especular Mathematics medicine.diagnostic_test Paquimetría corneal business.industry Specular microscope Intercambiabilidad Mean age Confidence interval Tomografía de coherencia óptica lcsh:RE1-994 SPECULAR MICROSCOPY 030221 ophthalmology & optometry Cirrus Paquimetría ultrasónica business 030217 neurology & neurosurgery lcsh:Optics. Light Optometry |
| Zdroj: | Journal of Optometry Journal of Optometry, Vol 11, Iss 3, Pp 192-197 (2018) |
| ISSN: | 1989-1342 1888-4296 |
| Popis: | Purpose: To compare and analyze the interchangeability of three measuring systems, each based on a different technique, for central corneal thickness (CCT) analysis. Methods: CCT measurements were measured using optical coherence tomography (OCT), non-contact specular microscopy (NCSM), and ultrasonic pachymetry (USP) in 60 eyes of 60 healthy patients with a mean age of 66.5 ± 15.0 years and a mean spherical equivalent of 0.43 ± 1.14 D. Analysis of variations in measurement concordance and correlation among the three different methods were performed. Comparison of CCT measurements were done using Bland–Altman plots (with bias and 95% confidence intervals), intraclass correlation coefficient (ICC), and paired t-student analysis. Results: Mean CCT values were: 549.20 ± 26.91 μm for USP (range 503–618 μm), 514.20 ± 27.49 μm for NCSM (range 456–586 μm) and 542.80 ± 25.56 μm for OCT (range 486–605 μm). CCT values obtained with NCMS were significantly lower than those obtained with OCT and USP methods. NCMS CCT value was 36.08 ± 10.72 μm lower than USP value (p |
| Databáze: | OpenAIRE |
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