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Clinical science

Comparison of central and peripheral corneal thickness measurements with scanning-slit, Scheimpflug and Fourier-domain ocular coherence tomography J Bradley Randleman,1,2 Michael J Lynn,3 Claudia E Perez-Straziota,1 Heather M Weissman,1 Sang Woo Kim4 1

Department of Ophthalmology, Emory University, Atlanta, Georgia, USA 2 Emory Vision, Emory Eye Center, Atlanta, Georgia, USA 3 Department of Biostatistics and Bioinformatics, Rollins School of Public Health, Emory University, Atlanta, Georgia, USA 4 Department of Ophthalmology, University of Ulsan College of Medicine, Ulsan, South Korea Correspondence to Dr J Bradley Randleman, Emory Eye Center, 5671 Peachtree Dunwoody Rd NE, Suite 400, Atlanta, GA 30342, USA; [email protected] CEP-S is now in private practice. Received 31 October 2014 Revised 3 February 2015 Accepted 8 March 2015 Published Online First 30 March 2015

To cite: Randleman JB, Lynn MJ, Perez-Straziota CE, et al. Br J Ophthalmol 2015;99:1176–1181. 1176

ABSTRACT Purpose To compare central, regional and relational corneal thickness values obtained with multiple technologies in normal patients and to determine their equivalence and interchangeability. Methods Retrospective analysis of 100 eyes from 50 patients evaluated by ultrasound pachymetry (Pachette II), scanning-slit (Orbscan II), Scheimpflug (Pentacam HR) and spectral-domain ocular coherence tomography (OCT) (RTVue-100) obtained as average values (OCT-A) and point measurements (OCT-P). Measurements included central corneal thickness (CCT) for all technologies and thinnest corneal thickness for scanning-slit, Scheimpflug and OCT. Peripheral thickness measurements were obtained at the 3 mm radius in the superior (S), nasal (N), inferior (I) and temporal (T) regions. Results CCT values were: 563.9±36.1μ ultrasound, 570.9±36.1μ scanning-slit, 552.8±33.8μ Scheimpflug, 550.5±32.7μ (OCT-A), 549.4±32.7μ (OCT-P). Ultrasound and scanning-slit were significantly different from each other ( p

Comparison of central and peripheral corneal thickness measurements with scanning-slit, Scheimpflug and Fourier-domain ocular coherence tomography.

To compare central, regional and relational corneal thickness values obtained with multiple technologies in normal patients and to determine their equ...
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