Comparison of central corneal thickness using optical low-coherence reflectometry and spectral-domain optical coherence tomography

López-Miguel, Alberto; Correa-Pérez, María Encarnación; Miranda-Anta, Silvia; Iglesias-Cortiñas, D; Coco-Martín, María Begoña; Maldonado, Miguel J.

doi:10.1016/j.jcrs.2011.11.039

Cited by 13 publications

(15 citation statements)

References 27 publications

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“…The results of the present study demonstrated that all devices have high repeatability in healthy subjects and were in accordance with the literature (3,6,(9)(10)(11)(12)(13)(14)(15) . In addition, the FD-OCT exhibited slightly better repeatability compared with the other devices.…”

Section: Discussionsupporting

confidence: 92%

“…In our study, considering the 95% LOA obtained from Bland-Altman plots for these comparisons, the OLCR and FD-OCT measurement displayed the smallest range of LOA (35.9 μm). López-Miguel et al (14) observed that the 95% LOA for the CCT measurement between another FD-OCT (Cirrus) and the same OLCR used in our study was 44.93 μm, which was slightly wider than those found in our study. They suggested that CCT measurements obtained with these devices could be used interchangeably, with minimum calibration adjustment.…”

Section: Discussioncontrasting

confidence: 69%

“…It can measure 35,632 points on the anterior corneal surface and 30,000 on the posterior corneal surface, in high-resolution mode, in approximately 5-6 s. A pachymetric map is then reconstructed using the point-by-point anterior and posterior corneal surface data (10) . These non-contact instruments have been shown to have good repeatability in normal eyes (3,6,(9)(10)(11)(12)(13)(14)(15) . However, there are limited data available regarding the agreement among CCT measurements obtained using OLCR, FD-OCT, and SC.…”

Section: Introductionmentioning

confidence: 99%

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Comparison of central corneal thickness measurements using optical low-coherence reflectometry, Fourier domain optical coherence tomography, and Scheimpflug camera

Gonul¹,

Köktekir²,

Bakbak³

et al. 2014

Arquivos Brasileiros De Oftalmologia

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Purpose: To compare the results of central corneal thickness (CCT) measurements obtained using optical low-coherence reflectometry (OLCR), Fourier domain optical coherence tomography (FD-OCT), and a Scheimpflug camera (SC), combined with Placido corneal topography. Methods: A total of 25 healthy subjects were enrolled in the present study, and one eye of each subject was included. A detailed ophthalmic examination was performed in all cases following CCT measurements with OLCR, FD-OCT, and SC. The results were compared using an ANOVA test. Bland-Altman analysis was used to demonstrate agreement between methods. Intra-examiner repeatability was assessed by using intraclass correlation coefficients (ICCs). Results: Statistically significant differences were observed between the results of the CCT measurements obtained using the three different devices (p=0.009). Significant correlations were found between OLCR and FD-OCT (r=0.97; p<0.0001), FD-OCT and SC (r=0.91; p<0.0001), and OLCR and SC (r=0.95; p<0.0001). The 95% limits of agreement (LOA) obtained from Bland-Altman plots were from -7.2 μm to 28.7 μm for OLCR versus FD-OCT, from -19.2 μm to 30.4 μm for OLCR versus SC, and from -42.6 to 32.3 μm for FD-OCT versus SC. Intra-examiner repeatability was excellent for each method, with ICCs >0.98. Conclusions: Although the results of CCT measurements obtained from these three devices were highly correlated with one another and the mean differences between instruments were comparable with the reported diurnal CCT fluctuation, the measurements are not directly interchangeable in clinical practice because of the wide LOA values.

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Section: Discussionsupporting

confidence: 92%

Section: Discussioncontrasting

confidence: 69%

Section: Introductionmentioning

confidence: 99%

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Comparison of central corneal thickness measurements using optical low-coherence reflectometry, Fourier domain optical coherence tomography, and Scheimpflug camera

Gonul¹,

Köktekir²,

Bakbak³

et al. 2014

Arquivos Brasileiros De Oftalmologia

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“…To perform an accurate measurement of CCT is increasingly important in clinical ophthalmology [6,7]. Currently there are several methods to calculate the CCT, although probably the most widespread method is still UP.…”

Section: Discussionmentioning

confidence: 99%

Agreement between Central Corneal Thickness Measured Using Pentacam, Ultrasound Pachymetry, Specular Microscopy and Optic Biometer Lenstar LS 900 and the Influence of Intraocular Pressure

Borrego-Sanz

Sáenz-Francés²,

Bermúdez-Vallecilla³

et al. 2014

Ophthalmologica

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Purpose: To compare central corneal thickness (CCT) values obtained by Lenstar (LE), Pentacam (PC), specular microscopy (SM) and ultrasound pachymetry (UP) in healthy corneas and study their influence on intraocular pressure (IOP) readings determined by Goldmann applanation tonometry (GAT). Methods: CCT was measured in 76 healthy subjects by LE, PC, SM and UP. We established Lin's concordance correlation coefficient (ρ-C) between different techniques. The influence of CCT on GAT was established through univariate linear regression models, IOP being the dependent variable. Results: The highest ρ-C was found between LE and SM at 0.94 (95% CI: 0.91-0.96) and between LE and UP at 0.95 (95% CI: 0.94-0.97). IOP readings showed less variability when CCT was determined using LE (7.7%, B = 0.16; 95% CI: 0.004-0.28). Conclusions: Although CCT values obtained with UP, PC, SM and LE show good correlation, these methods are not completely interchangeable. The amount of IOP variation differs when CCT is determined using LE or SM.

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“…1 Clinically the measurement of Central cornea thickness (CCT) is most important for refractive surgery, glaucoma diagnosis and monitor the progression of various corneal problems. 2,3 Measurement of central corneal thickness is performed for both diagnostic and therapeutic purposes. CCT allows determination of the amount of stromal ablation to minimize the risk of iatrogenic keratectasia in Laser Assisted In situ Keratomileusis (LASIK) surgery.…”

Section: Introductionmentioning

confidence: 99%

Central Corneal Thickness

Ahmad

Qureshi

Ahmad

et al. 2018

TPMJ

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Comparison of central corneal thickness using optical low-coherence reflectometry and spectral-domain optical coherence tomography

Abstract: No author has a financial or proprietary interest in any material or method mentioned.

Cited by 13 publications

References 27 publications

Comparison of central corneal thickness measurements using optical low-coherence reflectometry, Fourier domain optical coherence tomography, and Scheimpflug camera

Comparison of central corneal thickness measurements using optical low-coherence reflectometry, Fourier domain optical coherence tomography, and Scheimpflug camera

Agreement between Central Corneal Thickness Measured Using Pentacam, Ultrasound Pachymetry, Specular Microscopy and Optic Biometer Lenstar LS 900 and the Influence of Intraocular Pressure

Central Corneal Thickness

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