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 compare the measurements of lower and higher order aberrations (HOA) of 4 commonly used aberrometers. SETTING Massachusetts Eye & Ear Infirmary, Boston, USA. DESIGN Prospective, cross-sectional study, in a controlled, single-blinded fashion. METHODS Multiple readings were obtained in 42 eyes of 21 healthy volunteers, at a single visit, with each of the following aberrometers: A...

PURPOSE This study was designed to investigate higher-order aberrations (HOAs) due to the posterior corneal surface in keratoconic eyes compared with normal eyes. METHODS We studied 24 normal and 28 keratoconic eyes. The anterior/posterior corneal heights and pachymetric data were obtained with a rotating Scheimpflug camera. HOAs for 6 mm pupils were calculated from the differences between th...

PURPOSE: With the aberrometer based on Tscherning's principle, measurements of wavefront aberrations of human eyes with high accuracy and reproducibility are available for standard diagnostic investigations. METHODS: During investigational and clinical trials, wavefront-aberrations of about 300 human eyes were measured and evaluated within the last few years. RESULTS: measurements are presented...

PURPOSE To evaluate the objective accommodative response, change of aberrations, and depth of focus in eyes implanted with the Crystalens accommodative intraocular lens (IOL) at different accommodative demands. DESIGN Prospective, observational study. METHODS Eleven cataract patients (22 eyes) who underwent implantation of a Crystalens accommodative IOL, and control groups of 9 normal subje...

PURPOSE To investigate the influence of pupil diameter on the relation between induced changes in ocular higher-order wavefront aberrations and changes in contrast sensitivity by conventional laser in situ keratomileusis (LASIK) for myopia. METHODS In 215 eyes of 117 patients (age, 33.2 +/- 8.3 years) undergoing LASIK for myopia of -1.25 to -13.5 D (-5.28 +/- 2.55 D), ocular wavefront aberrat...

PURPOSE To measure and quantify higher-order aberrations induced by different types of lenticular opacities. SETTING Department of Ophthalmology, University of Auckland, and Department of Ophthalmology, Auckland Public Hospital, Auckland, New Zealand. METHODS Patients with lenticular opacities were recruited from outpatient clinics of a major tertiary referral center for ophthalmology. Pati...

Purpose : to compare anatomical and optical parameters aberrations of both eyes in patients with acquired congenital anisometropic myopia. Material methods . 22 (44 eyes) aged 18–35 (averagely, 25.2) myopia were examined using the Galilei G6 eye system analyzer (Ziemer, Switzerland). The analysis total, corneal internal was carried out on an OPD-Scan III (Nidek) aberrometer. Results In groups m...

PhotonicsViewsVolume 20, Issue 3 p. 84-84 Product ReportFree Access Metasurfaces and metalenses First published: 20 June 2023 https://doi.org/10.1002/phvs.202370318AboutPDF ToolsExport citationAdd to favoritesTrack citation ShareShare Give accessShare full text full-text accessPlease review our Terms Conditions of Use check box below share version article.I have read accept the Wiley Online Lib...