RT info:eu-repo/semantics/article
T1 Detecting true change in keratoconus after intracorneal ring segment implantation
A1 Arnalich Montiel, Francisco
A1 Fuente García, Carlota
A1 Auladell, Clara
A1 Ortiz Toquero, Sara
K1 Ophthalmology
K1 Eye - Diseases - Diagnosis
K1 Ojo - Enfermedades y defectos - Tratamiento
K1 Prognosis
K1 Cornea - Diseases - Treatment
K1 Córnea - Enfermedades
K1 Repeatability
K1 Reproducibility
K1 Biomedical engineering
K1 Optical data processing
K1 Medical technology
K1 Medical innovations
K1 3201.09 Oftalmología
K1 3311.11 Instrumentos Opticos
K1 3314 Tecnología Médica
AB Confirming the progression of keratoconus is of paramount relevance to providing the appropriate treatment. Real change should be considered consistent over time. It must be greater than the variability of the measurement of the device used to monitor the cornea. The present study aimed to assess the intraobserver repeatability and intersession reproducibility of a Scheimpflug camera in measuring corneal parameters in virgin keratoconus and intrastromal corneal ring segments (ICRS) implantation eyes to discriminate real change from measurement noise. Sixty keratoconus and 30 ICRS eyes were included. Corneal parameters were determined in three consecutive measurements and were repeated 2 weeks later. The precision within the same session for all parameters was better in the keratoconic eyes, with mean repeatability limits 33% narrower (range 13% to 55%) compared with ICRS eyes. Mean reproducibility limits were 16% narrower (range +48% to −45%) compared with ICRS eyes. The cutoff values to consider a real corneal shape change were lower for virgin keratoconic than for ICRS, except for the thinnest corneal thickness and Stage C (ABCD system), which were the opposite. Corneal tomography measurements in ICRS eyes showed worse accuracy than in virgin keratoconus, which should be taken into account by practitioners in patients’ follow up.
PB MDPI
SN 2075-1729
YR 2023
FD 2023
LK https://uvadoc.uva.es/handle/10324/64149
UL https://uvadoc.uva.es/handle/10324/64149
LA eng
NO Life, 2023, Vol. 13, Nº. 4, 978
NO Producción Científica
DS UVaDOC
RD 15-may-2024