Teresa Ferrer-Blasco1, Alberto Domínguez-Vicent2, José J Esteve-Taboada1, Miguel A Aloy3, Jose E Adsuara3, Robert Montés-Micó1. 1. Department of Optics and Optometry and Visual Sciences, University of Valencia, C/ Dr Moliner, 50, Burjassot, 46100, Valencia, Spain. 2. Department of Optics and Optometry and Visual Sciences, University of Valencia, C/ Dr Moliner, 50, Burjassot, 46100, Valencia, Spain. alberto.vicent@uv.es. 3. Departamento de Astronomía y Astrofísica, University of Valencia, Valencia, Spain.
Abstract
PURPOSE: The purpose was to evaluate the repeatability of a new swept-source optical biometer for measuring ocular biometric parameters. METHODS: Thirty subjects with healthy and phakic eyes were included in this study, and only one eye per participant was analysed. Each eye was measured five times with the IOLMaster 700 swept-source optical biometer (Carl Zeiss Meditec, Jena, Germany). Axial length (AL), anterior chamber depth (ACD), central corneal thickness (CCT), lens thickness (LT), white-to-white (WTW), and K1 and K2 keratometric readings were evaluated. The repeatability of swept-source biometry was evaluated on the basis of five measurements captured for each patient. RESULTS: The repeatability limits for the axial measurements AL, ACD, CCT, and LT were 0.03, 0.07, 0.004, and 0.11 mm, respectively. For the WTW distance and both keratometry readings, the repeatability limits were 0.20, 0.06, and 0.05 mm, respectively. The AL resulted in the lowest coefficient of variation, and the LT had the highest one. The spherical equivalent showed statistically significant negative correlations with the AL and ACD. CONCLUSION: Swept-source optical biometry showed high repeatability performance for all biometric parameters in healthy eyes, where the correlation between the spherical equivalent and AL showed the strongest value.
PURPOSE: The purpose was to evaluate the repeatability of a new swept-source optical biometer for measuring ocular biometric parameters. METHODS: Thirty subjects with healthy and phakic eyes were included in this study, and only one eye per participant was analysed. Each eye was measured five times with the IOLMaster 700 swept-source optical biometer (Carl Zeiss Meditec, Jena, Germany). Axial length (AL), anterior chamber depth (ACD), central corneal thickness (CCT), lens thickness (LT), white-to-white (WTW), and K1 and K2 keratometric readings were evaluated. The repeatability of swept-source biometry was evaluated on the basis of five measurements captured for each patient. RESULTS: The repeatability limits for the axial measurements AL, ACD, CCT, and LT were 0.03, 0.07, 0.004, and 0.11 mm, respectively. For the WTW distance and both keratometry readings, the repeatability limits were 0.20, 0.06, and 0.05 mm, respectively. The AL resulted in the lowest coefficient of variation, and the LT had the highest one. The spherical equivalent showed statistically significant negative correlations with the AL and ACD. CONCLUSION: Swept-source optical biometry showed high repeatability performance for all biometric parameters in healthy eyes, where the correlation between the spherical equivalent and AL showed the strongest value.
Authors: M Á Aloy; J E Adsuara; P Cerdá-Durán; M Obergaulinger; J J Esteve-Taboada; T Ferrer-Blasco; R Montés-Micó Journal: PLoS One Date: 2017-09-18 Impact factor: 3.240
Authors: Peter M Maloca; Harald P Studer; Renato Ambrósio; David Goldblum; Simon Rothenbuehler; Daniel Barthelmes; Sandrine Zweifel; Hendrik P N Scholl; Konstantinos Balaskas; Adnan Tufail; Pascal W Hasler Journal: PLoS One Date: 2018-09-13 Impact factor: 3.240