Observational studyInternational ophthalmology2020
Measurement of central corneal thickness using Orbscan 3, Pentacam HR and ultrasound pachymetry in normal eyes.
Observational study in International ophthalmology, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.
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Who cites it
7 citing papers in PubMed, 15 citations in OpenAlex.
- Comparison of the reliability of corneal curvature and eccentricity measurements in myopic eyes using four different devices.Frontiers in medicine · 2025Article
- The effect of pterygium on front and back corneal astigmatism and aberrations in natural-light and low-light conditions.BMC ophthalmology · 2024Article
- Comparison of Central Corneal Thickness Measurements with Four Different New Devices and Ultrasound Pachymetry.Turkish journal of ophthalmology · 2022Article
- Monitoring of central corneal thickness after phacoemulsification-comparison of statical and rotating Scheimpflug pachymetry, and spectral-domain OCT.International journal of ophthalmology · 2022Article
- Comments on: Repeatability of Orbscan III for anterior segment parameters in normal eyes.Indian journal of ophthalmology · 2021Article
- Sirius Scheimpflug-Placido versus ultrasound pachymetry for central corneal thickness: meta-analysis.Eye and vision (London, England) · 2021Article
- Ocular and Systemic Findings in Adults with Uveal Coloboma.Ophthalmology · 2020Article
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Authors and funding
4 authors at 2 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
purposeTo assess the agreement between Orbscan 3, Pentacam HR and ultrasound pachymetry (Palm Scan AP 2000) in measuring central corneal thickness.
methodsProspective observational cross-sectional study of ninety-two eyes of 48 patients with normal corneas was conducted. Central corneal thickness was measured via Pentacam HR, Orbscan 3 and ultrasound pachymetry. Bland-Altman analysis was used to demonstrate agreement between various methods.
resultsNinety-two eyes of 46 subjects were enrolled. The mean age was 29.67 years (18-59). The average measurements of central corneal thickness were 545.73 ± 29.35 μm, 549.34 ± 29.14 μm and 545.78 ± 31.48 μm for the Pentacam HR, Orbscan and ultrasound pachymetry, respectively. The three devices measurements are closely correlated, with Pearson correlation coefficient ranging from 0.868 to 0.929. The 95 % limits of agreement were 25.2 to - 18 μm between Orbscan and Pentacam central corneal thickness, 25.2 to - 25.7 μm between Pentacam and pachymetry central corneal thickness and 34.4 to - 27.2 μm between Orbscan and pachymetry central corneal thickness.
conclusionIn spite of advancement of Orbscan 3, still there are wide agreement limits between CCT measurements obtained via Orbscan 3, Pentacam HR and ultrasound pachymetry; thus, interchangeable use in clinical practice is not recommended.
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