نتایج جستجو برای: ultrasonic pachymetry
تعداد نتایج: 29317 فیلتر نتایج به سال:
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...
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...
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...
Sirius Scheimpflug–Placido versus ultrasound pachymetry for central corneal thickness: meta-analysis
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...
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...
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...
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...
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: ...
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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