Comparación de tres biómetros ópticos en pacientes con catarata en una institución de alta complejidad 

Tesis doctoral: Tesis de Especialización Medico Quirúrgica


Purpose: To evaluate the results of optical biometry using the IOLMaster 500, Lenstar LS
900 and Aladdin in eyes with cataract.
Methods: In 231 eyes of 152 patients with cataract,the measurements of 3 different
biometers were retrospectively compared. Paired comparisons were performed for axial
length (AL), mean keratometry (mean K) and anterior chamber depth (ACD).
Results: In only 197 of the 231 eyes (85.3%), it was possible to obtain reliable measurements
of AL with all the three devices. It was not possible to determine AL in 16 eyes (6.9%) with
Lenstar LS 900; in 19 eyes (8.2%) with Aladdin; and in 20 eyes (8.6%) with IOLMaster 500
possibly related to the severity of lens opacification (the corneas had good transparency in
the eyes included in the study). There was a statistically significant difference in AL between
IOLMaster 500 and the remaining two biometers (P = 0.03). However, the amount of
difference was considered clinically not significant (0.04 mm). The mean keratometry (mean
K) was determined in 203 eyes (87.9%) with all the three devices. Differences in mean K
were between - 0.1 and 0.06 Diopters (D), which were considered neither statistically (P >
0.05) nor clinically significant. The anterior chamber depth (ACD) was determined in 197
eyes (85.28%) with all the three biometers. The differences between the three devices (0.03
Fecha de lectura2019
Idioma originalEspañol (Colombia)
Institución de lectura
  • Universidad Autónoma de Bucaramanga
SupervisorAlejandro Tello Hernández (Director) & Miguel Enrique Ochoa Vera (Codirector)

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