PURPOSE To evaluate corneal changes and ocular aberrations during an orthokeratology test. DESIGN A prospective, nonrandomized cohort study. METHODS Fourteen myopic patients (26 eyes) underwent an orthokeratology fitting test with the BE contact lens (Ultravision Pty, Ltd, Brisbane, Australia). Best spectacle-corrected visual acuity (BSCVA), uncorrected (Ultravision Pty, Ltd, Brisbane, Aust...

Purpose. To evaluate the corneal aberration changes in dry eye patients after treatment with artificial eye drops. Methods. Thirty mild to moderate dry eye patients treated with artificial eye drops and twenty comparable dry eye patients were recruited as controls. Anterior corneal aberrations over 3 mm and 5 mm analytical zones including total, 3rd to 5th high order aberrations (HOAs), spheric...

Objective: To compare corneal aberrations and densitometry values in children with amblyopia due to anisometropic hyperopia those of healthy children.
 Methods: This study included 173 hyperopic anisometropia one eye both eyes. The amblyopic (Group 1) the fellow normal 2) patients right control group 3) were evaluated. Of aberration (CD)measured using Scheimpflug topography noted.
 Re...

defining the patient outcome and decision making about allocation of our limited fund and technology for comatose patients depends on our knowledge about frequency and outcome of various coma etiologies. we determined the various coma causes frequency and one-month outcome of non traumatic coma. . in addition the co existence of the primary neurologic signs with the one-month outcome of non tra...

PURPOSE To investigate the interaction between corneal, internal, and total wavefront aberrations (WAs) and their influential factors during orthokeratology (OK) treatment in Chinese adolescents. METHODS Thirty teenagers (n = 30 eyes) were enrolled in the study; spherical equivalent refraction (SE), corneal curvature radius (CCR), central corneal thickness (CCT), WAs, and the difference in li...

We made on-axis aberrations and horizontal peripheral refraction measurements of emmetropic subjects (spherical equivalent -0.88D to +0.75D) aged between 19 and 70 years. We found smaller changes in on-axis aberrations with age than has previously been reported, possibly because of the small refractive error range of our subject group. Higher order root-mean-squared aberrations increased by 26%...

BACKGROUND To compare changes in higher-order aberrations (HOAs) following small incision lenticule extraction (SMILE) and wavefront-guided femtosecond laser-assisted in situ keratomileusis (WFG FS-LASIK), and to investigate correlations between preoperative spherical equivalence (SE) and components of HOAs affecting visual quality. METHODS Sixty-five myopic eyes from 38 patients were enrolle...

background traumatic brain injury (tbi) is an important public health problem throughout the world. objectives the aim of this study was to assess repeated glasgow coma scale (gcs) scores in predicting the severity of tbi and patients’ survival. patients and methods in this longitudinal study used a total sample of 239 patients, all of whom were hospitalized with traumatic brain injuries. subje...

Higher order optical aberrations were measured in 273 cyclopleged Singaporean school children using a Bausch and Lomb Zywave aberrometer, with 268 of these subjects also undergoing corneal topography measurements (Tomey TMS 2 system). Subjects with low myopia (> -3.00 to -0.50 D) showed slightly, but significantly, less positive levels of spherical aberration than other refractive error groups....

Four patients aged between 9 months and 17 years were detected to have congenital ocular motor apraxia (COMA) over a 10-month period. Three of them were siblings. All exhibited the classical signs of a horizontal saccadic palsy. However, the signs were less pronounced with increasing age of the patient. This supports the observations of other authors who have noted an age-related resolution. Th...