Results 31 to 40 of about 2,262 (162)

Evaluation of corneal distortion characteristics in different eyes using Scheimpflug camera device

open access: yesJournal of Ophthalmology, 2021
Objective. To study the correlations between corneal distortion and morphological features in different kinds of eyes such as healthy ones (HE), ones previously undergone myopic PRK (PRKE), ones affected by keratoconus (KCE) and keratoconus eyes ...
Sbordone S.   +6 more
doaj   +1 more source

Imaging Characteristics of Three Cameras Using the Scheimpflug Principle

open access: yesOphthalmic Research, 2009
We studied the handling and the potentials of three different cameras operating according to the Scheimpflug principle and which currently are commercially available. The examinations were performed with the cameras Topcon SL-45, Topcon SL-6E with cataract attachment and Zeiss SLC system.
M, Kojima, A, Wegener, O, Hockwin
openaire   +2 more sources

Sirius Scheimpflug–Placido versus ultrasound pachymetry for central corneal thickness: meta-analysis

open access: yesEye and Vision, 2021
Background To compare the difference in central corneal thickness (CCT) measurements in normal eyes between a rotating Scheimpflug camera combined with a Placido-disk corneal topographer (Sirius, CSO, Italy) and ultrasound pachymetry (USP).
Yili Jin   +10 more
doaj   +1 more source

Peculiarities of Biomechanical Properties of Ocular Tissue in Keratoconus

open access: yesGalician Medical Journal, 2016
Considerable achievements having been recently made in modern diagnostics and treatment of keratoconus have not diminished the urgency of the given problem as the traditional views of the pathogenesis of keratoconus do not always allow to struggle ...
Iryna Shargorodska
doaj   +1 more source

Combined scheimpflug and optical coherence tomography imaging in screening of keratoconus in children with Down syndrome

open access: yesDelta Journal of Ophthalmology, 2023
Purpose The aim of this study was to screen for keratoconus (KC) in a sample of children with Down syndrome (DS) and to correlate the changes of combined Scheimpflug and optical coherence tomography imaging in these children and to compare it with an age-
Sarah Azzam   +3 more
doaj   +1 more source

Single session, intrauser repeatability of anterior chamber biometric and corneal pachy-volumetric parameters using a new Scheimpflug + Placido device

open access: yesJournal of Optometry, 2016
Purpose: To analyze single session, intrauser reliability of a Scheimpflug device for anterior chamber (AC) and corneal parameters. Methods: In this observational study, 100 normal candidates underwent Scheimpflug analysis with Sirius 3D Rotating ...
Gaurav Prakash, Dhruv Srivastava
doaj   +1 more source

Corneal Topography: Sirius

open access: yesDelhi Journal of Ophthalmology, 2021
Present-day corneal tomography analysis has improved accuracy of corneal contour detection and is considered extremely valuable in the diagnosis of subclinical keratoconus.
Jigyasa Sahu
doaj   +1 more source

Reduced order modelling of air‐puff test for corneal material characterisation

open access: yesJournal of Microscopy, EarlyView.
Abstract Models of the fluid–structure interaction (FSI) model for the air‐puff test were analysed. Using Abaqus, the air‐puff test is applied to eyes with varying biomechanical parameters, such as material properties, corneal thickness, and radius.
Osama M. Maklad, Muting Hao
wiley   +1 more source

A review of angle kappa and multifocal intraocular lenses and their effect on visual outcomes

open access: yesActa Ophthalmologica, Volume 104, Issue 2, Page e122-e138, March 2026.
Abstract Although most patients are satisfied with their vision after multifocal intraocular lens (IOL) implantation, dissatisfaction has been reported for various reasons, including poor visual outcomes and visual disturbances. Many published reports hypothesise that preoperative angle kappa may be an associated factor in patient dissatisfaction ...
Thomas Kohnen   +2 more
wiley   +1 more source

Range Sensing With a Scheimpflug Camera and a CMOS Sensor/Processor Chip

open access: yesIEEE Sensors Journal, 2004
An image-based range-sensing technique is presented. The technique is originally considered for highway collision avoidance applications, but its generality makes it suitable for application in robotics, manufacturing, and metrology, as well. It relies on depth from focus but, unlike conventional techniques, it extracts range with a single unmodulated ...
Çilingiroğlu, Uğur   +2 more
openaire   +2 more sources

Home - About - Disclaimer - Privacy