Comparison of keratometry and white-to-white measurements obtained by Lenstar with those obtained by autokeratometry and corneal topography

Jinhai Huang; Giacomo Savini; Binbin Su; Rui Zhu; Yifan Feng; Shishi Lin; Hao Chen; Qinmei Wang

doi:10.1016/j.clae.2015.04.003

Comparison of keratometry and white-to-white measurements obtained by Lenstar with those obtained by autokeratometry and corneal topography

Jinhai Huang, Giacomo Savini, Binbin Su, Rui Zhu, Yifan Feng, Shishi Lin, Hao Chen, Qinmei Wang

Fondazione G.B. Bietti

Research output: Contribution to journal › Article

Abstract

Purpose: To compare anterior eye segment measurements obtained using low optical coherence reflectometry (LENSTAR LS900, Haag-Streit), autokeratometry (RC-5000, Tomey) and corneal topography (Topolyzer, Wavelight). Methods: In 46 healthy subjects, flat keratometry (K_f), steep keratometry (K_s), mean keratometry (K_m) and white-to-white (WTW) distance were measured by Lenstar, Tomey RC-5000 and Topolyzer. Results: K_f and K_m measurements of Lenstar were significantly steeper than Tomey RC-5000 (both pf and K_m measurements of Lenstar and Topolyzer, with a narrow 95% LoA. There were no significant differences between the K_s measurements of Lenstar and Tomey RC-5000, and Lenstar and Topolyzer. A good agreement was found between them with 95% LoA of -0.40 to 0.56D, and -0.56 to 0.64D, respectively. WTW measurements with Lenstar were greater than those with Tomey RC-5000 and Topolyzer (p=0.042, p

Original language	English
Pages (from-to)	363-367
Number of pages	5
Journal	Contact Lens and Anterior Eye
Volume	38
Issue number	5
DOIs	https://doi.org/10.1016/j.clae.2015.04.003
Publication status	Published - Oct 1 2015

Keywords

Keratometry
Optical low coherence reflectometry
Topography
White-to-white

ASJC Scopus subject areas

Ophthalmology
Optometry

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Huang, J., Savini, G., Su, B., Zhu, R., Feng, Y., Lin, S., Chen, H., & Wang, Q. (2015). Comparison of keratometry and white-to-white measurements obtained by Lenstar with those obtained by autokeratometry and corneal topography. Contact Lens and Anterior Eye, 38(5), 363-367. https://doi.org/10.1016/j.clae.2015.04.003

Comparison of keratometry and white-to-white measurements obtained by Lenstar with those obtained by autokeratometry and corneal topography. / Huang, Jinhai; Savini, Giacomo; Su, Binbin; Zhu, Rui; Feng, Yifan; Lin, Shishi; Chen, Hao; Wang, Qinmei.

In: Contact Lens and Anterior Eye, Vol. 38, No. 5, 01.10.2015, p. 363-367.

Research output: Contribution to journal › Article

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