RT info:eu-repo/semantics/article
T1 Influence of keratoconus severity on detecting true progression with Scheimpflug imaging and anterior segment optical coherence tomography
A1 Ortiz Toquero, Sara
A1 Fuente García, Carlota
A1 Auladell, Clara
A1 Arnalich Montiel, Francisco
K1 Keratoconus
K1 Queratocono
K1 Ophthalmology
K1 Tomography
K1 Tomografía
K1 Reproducibility
K1 Cornea - Diseases
K1 Córnea - Enfermedades
K1 Eye - Diseases - Treatment
K1 Ojo - Enfermedades y defectos - Tratamiento
K1 2209 Óptica
K1 3201.09 Oftalmología
AB To determine consistent change over time in keratoconus disease, it is necessary to establish progression cut-off values based on intersession variability of the device used to monitor the cornea. The aim of this study was to analyze the accuracy of corneal parameters using Scheimpflug tomography and anterior segment optical coherence tomography in healthy and keratoconic eyes of varying severity to determine the cut-off values that indicate real progression. Three repeated measurements of each cornea of healthy (20 eyes) and keratoconic eyes (mild = 16, moderate = 25 and severe = 20) were recorded using Pentacam and Casia SS-1000 devices, which were repeated 2–3 weeks later. K1, K2, maximal anterior and posterior keratometry, and corneal thickness at the thinnest location (TCT) were collected. The accuracy was excellent with both devices; however, the Casia device presented better repeatability and reproducibility in all parameters in all groups compared to the Pentacam. The cut-off of the Pentacam and Casia in the mild stage were lower (K1 = 0.50 and 0.37 D; K2 = 0.51 and 0.37 D; Kmax-A = 1.24 and 0.65 D; Kmax-P = 0.38 and 0.17 D; TCT = 19.64 and 11.19 µm) than that of the severe stage (K1 = 1.09 and 0.88 D; K2 = 1.41 and 0.87 D; Kmax-A = 2.74 and 2.15 D; Kmax-P = 0.82 and 0.22 D; TCT = 28.68 and 14.83 µm). These results show that the greater the keratoconus severity, the greater the change that must occur for it to be considered real.
PB MDPI
SN 2075-1729
YR 2023
FD 2023
LK https://uvadoc.uva.es/handle/10324/66490
UL https://uvadoc.uva.es/handle/10324/66490
LA eng
NO Life, 2023, Vol. 13, Nº. 7, 1474
NO Producción Científica
DS UVaDOC
RD 24-nov-2024