نتایج جستجو برای: ultrasonic pachymetry

تعداد نتایج: 29317  

Journal: :Journal of cataract and refractive surgery 2005
Yaniv Barkana Yariv Gerber Uri Elbaz Shulamit Schwartz Gie Ken-Dror Isaac Avni David Zadok

PURPOSE To assess the intraoperator repeatability and interoperator reproducibility of central corneal thickness measurements by the Pentacam Scheimpflug imaging system (Oculus) and the optical low-coherence reflectometer (OLCR) pachymeter (Haag-Streit) and to compare them with those of ultrasound (US) pachymetry. SETTING Assaf Harofe Medical Center Ophthalmology Outpatient Clinic, Zerifin, I...

Journal: :Investigative ophthalmology & visual science 2014
Adrian Smedowski Beata Weglarz Dorota Tarnawska Kai Kaarniranta Edward Wylegala

PURPOSE The aim of this study was to show the usefulness of three methods for measuring IOP: Goldmann applanation tonometry, rebound tonometry, and Ultra-High-Speed Scheimpflug technology. METHODS The examined group consisted of 96 patients (192 eyes), including 63 women and 33 men with a mean age of 59.3 ± 19.9 years. Together, 152 healthy eyes and 40 eyes with different pathologies were exa...

Journal: :American journal of ophthalmology 2007
Iane Gonçalves Stillitano Maria Regina Chalita Paulo Schor Eduardo Maidana Marcelo Mastromonico Lui Cesar Lipener Ana Luisa Hofling-Lima

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...

Journal: :Journal of cataract and refractive surgery 2016
Elan Rosenblat Peter S Hersh

PURPOSE To determine intraoperative changes in corneal thickness and outcomes of corneal collagen crosslinking (CXL) using 2 intraoperative regimens: riboflavin-dextran or hypotonic riboflavin. SETTING Cornea and refractive surgery practice, Teaneck, New Jersey, USA. DESIGN Prospective randomized case series. METHODS Eyes with keratoconus or corneal ectasia were treated. All eyes received...

2010
Annabel C.Y. Chew Donald T.H. Tan Rebekah Poh Htoon HM Roger W. Beuerman Jodhbir S. Mehta

PURPOSE To investigate the effect of intracameral injection of fibrin tissue sealant on the anterior segment structures in a rabbit model. METHODS One eye of 10 rabbits received an intracameral injection of fibrin tissue sealant with a thrombin concentration of 500 IU (TISSEEL), and the fellow eye received an intracameral injection of balanced salt solution as a control. The rabbits were foll...

Journal: :Cornea 2015
Cordelia Chan Marcus Ang Alain Saad Daniel Chua Margarita Mejia Li Lim Damien Gatinel

PURPOSE To investigate the efficacy of the SCORE Analyzer (Bausch+Lomb TechnoLas, Germany) in detecting forme fruste keratoconus (FFKC) in Asian eyes and validate its usefulness as a risk assessment system for post-laser in situ keratomileusis (LASIK) keratectasia. METHODS We retrospectively evaluated corneal topographies with the Orbscan IIz system and independently tested them with the SCOR...

Journal: :ماشین های کشاورزی 0
رسول معمار دستجردی سعید مینایی محمد هادی خوش تقاضا

development of ultrasound technique has not been progressing for evaluating the internal quality of fruits as fast as that of processed foods. in this research for quality assessment of pear fruit (shah miveh variety) an ultrasonic measurement system was constructed to transmit and receive the ultrasonic waves. the apparatus included a pulser-receiver, a pair of 75 khz ultrasonic transducers wi...

2013
Arthur B. Cummings Brendan K. Cummings Gabrielle E. Kelly

250 of 250 words) Purpose: To compare the intended versus resultant thickness of laser in situ keratomileusis (LASIK) flaps created with a new femtosecond laser (WaveLight FS200 Femtosecond Laser, WaveLight GmbH, Alcon Laboratories) and to report refractive outcomes at 3 months posttreatment. Setting: Wellington Eye Clinic, Dublin, Ireland Design: Retrospective consecutive case series Methods: ...

2013
Ahmed Assaf Maged Maher Roshdy

PURPOSE This paper compares and evaluates the corneal morphological changes occurring after cataract surgery through a 2.2 mm corneal incision. We use two platforms for comparison and evaluation, transversal and torsional phacoemulsification. PATIENTS AND METHODS This study includes 139 consecutive cataractous eyes (nuclear color 2-4, according to the Lens Opacities Classification System III ...

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