RT Journal Article
T1 Assessment of lower tear meniscus measurements obtained with Keratograph and agreement with Fourier-domain optical-coherence tomography
A1 Arriola Villalobos, Pedro
A1 Fernández Vigo, José Ignacio
A1 Díaz Valle, David
A1 Peraza Nieves, Jorge E.
A1 Fernández Pérez, Cristina
A1 Benítez Del Castillo Sánchez, José Manuel
AB Aims: To compare intraobserver repeatability and interobserver and intersession reproducibility of lower tear meniscus height measurements (LTMH) obtained with the new Keratograph 5M and a Fourier-domain optical-coherence tomography (OCT; Spectralis OCT) and to assess the agreement between the two devices.Methods: This is a observational cross-sectional study. Thirty eyes of 30 normal subjects were randomly imaged twice with both devices in our setting. Two examiners randomly made LTMH measurements using the devices. To assess intraobserver repeatability and interobserver and intersession reproducibility within-subject SD (Sw), test-retest repeatability, coefficient of variation (CoV) and intraclass correlation coefficients (ICCs) were calculated. Agreement between both devices was also determined.Results: Average LMTH for Keratograph was 235.46±57.61 μm, whereas the mean LTMH measured by OCT was 245.84±67.18 μm. Intraobserver repeatability and interobserver and intersession reproducibility were moderate with Keratograph (CoV ≥0.16%, ≥0.19%, ≥0.17% and ICC ≤0.83, ≤0.76, ≤0.83, respectively) and high for the Spectralis OCT (CoV ≤0.13%, ≤0.12%, ≤0.11% and ICC ≥0.9, ≥0.92, ≥0.92, respectively). No statistically significant difference was detected in mean LMTH measurements made with both devices, although correlation was low (CoV 0.25%, ICC 0.55).Conclusions: Spectralis OCT LTMH measurements were more reliable than the new Keratograph data. Agreement between the devices was poor.
PB BMJ Publishing Group
SN 0007-1161
YR 2015
FD 2015-02-12
LK https://hdl.handle.net/20.500.14352/112393
UL https://hdl.handle.net/20.500.14352/112393
LA eng
NO Arriola-Villalobos P, Fernández-Vigo JI, Díaz-Valle D, et alAssessment of lower tear meniscus measurements obtained with Keratograph and agreement with Fourier-domain optical-coherence tomographyBritish Journal of Ophthalmology 2015;99:1120-1125
DS Docta Complutense
RD 10 abr 2025