The purpose of this work is to analyze the contribution of eye movements to the variability of the Zernike coefficients as determined with a Hartmann-Shack aberrometer. In order to isolate this effect we considered static aberrations tied to the eye pupil. We used several eye movements of different magnitude, both synthetic and corresponding to actual series recorded in our laboratory with diff...

Purpose: To analyze the correlation of ocular higher-order aberrations (HOAs) and mesopic pupil size (MPS) with age and gender in myopic patients screened for refractive surgery Methods: Ocular HOAs and MPS were examined in 1,641 females eyes and 749 males eyes with myopia and also in two different age groups, under 30-year-old (1,675 eyes) and over 30-year-old (715 eyes), using the Zywave aber...

purpose : to analyze the correlation of ocular higher-order aberrations (hoas) and mesopic pupil size (mps) with age and gender in myopic patients screened for refractive surgery methods : ocular hoas and mps were examined in 1,641 females eyes and 749 males eyes with myopia and also in two different age groups, under 30-year-old (1,675 eyes) and over 30-year-old (715 eyes), using the zywave ab...

BACKGROUND To assess the precision and agreement of measurements of higher order aberrations (HOAs) obtained with a ray tracing aberrometer (iTrace) and a Hartmann-Shack aberrometer (Topcon KR-1 W). METHODS Prospective evaluation of the diagnostic test. Data from the right eyes of 92 normal subjects obtained using the two devices were included in this study. Two observers performed 3 consecut...

Purpose: To analyze the correlation of ocular higher-order aberrations (HOAs) and mesopic pupil size (MPS) with age and gender in myopic patients screened for refractive surgery Methods: Ocular HOAs and MPS were examined in 1,641 females eyes and 749 males eyes with myopia and also in two different age groups, under 30-year-old (1,675 eyes) and over 30-year-old (715 eyes), using the Zywave aber...

PURPOSE To compare refractive assessment results obtained with an aberrometer, an autorefractor, and manual subjective refraction (SR) in a healthy population with optimal visual potential. METHODS Sixty adults aged 18-59 years with visual acuity of 20/25 or better, no media opacity, and no known corneal or retinal abnormalities were recruited during the course of routine eye examination. Ref...

Purpose To investigate the reliability of ocular aberration measurement in myopic children under scotopic conditions and to validate the mathematical Zernike pupil scaling-down technique. Methods Ocular aberrations of 45 myopic children were examined under scotopic conditions via iTrace aberrometer. The intra- and intersession repeatability was evaluated for both the measured values with the ...