Results 91 to 100 of about 1,834,076 (153)

Evaluation of Transparency and Barrier Function of the Cornea by Scheimpflug Images

Ophthalmic Research, 2009
Two new methods of corneal analysis with Scheimpflug images will be introduced in this paper. The first study was to document the light scattering of the cornea itself using a newly modified Scheimpflug camera with higher magnification. Details of the slit images of the cornea could be evaluated more precisely than those of images taken with an ...
K, Kitagawa, Y, Sakamoto, K, Sasaki, H, Hanaki   +3 more
openaire   +2 more sources

Age-Related Changes in Corneal Deformation Dynamics Utilizing Scheimpflug Imaging.

PLoS ONE, 2015
PurposeTo study age-related changes in corneal deformation response to air-puff applanation tonometry.MethodsFifty healthy subjects were recruited for a prospective study and divided into two equal age groups (≤ 28 and ≥ 50 years old).
Marta E Rogowska, D Robert Iskander
doaj   +1 more source

Imaging Characteristics of Three Cameras Using the Scheimpflug Principle

Ophthalmic 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

Central and peripheral corneal thickness measured with optical coherence tomography, Scheimpflug imaging, and ultrasound pachymetry in normal, keratoconus-suspect, and post-laser in situ keratomileusis eyes

, 2009
PURPOSE: To compare central (CCT) and peripheral corneal thickness (PCT) using Scheimpflug imaging (Pentacam), high-speed optical coherence tomography (Visante OCT), and ultrasound (US) pachymetry (Sonogage Corneo-Gage Plus) in normal, keratoconus ...
Smith, Scott D., Rocha, Karolinne Maia [UNIFESP], Krueger, Ronald R., Prospero Ponce, Claudia Maria, Scott D. Smith, Karolinne Maia Rocha, Claudia Maria Prospero Ponce, Ronald R. Krueger   +7 more
core   +1 more source

Pentacam Scheimpflug Quantitative Imaging of the Crystalline Lens and Intraocular Lens

Journal of Refractive Surgery, 2009
Purpose: To implement geometrical and optical distortion correction methods for anterior segment Scheimpflug images obtained with a commercially available system (Pentacam, Oculus Optikgeräte GmbH). Methods: Ray tracing algorithms were implemented to obtain corrected ocular surface ...
Rosales, Patricia, Marcos, Susana
openaire   +4 more sources

Evaluation of parameters for early detection of pediatric keratoconus

BMC Ophthalmology
Background Keratoconus in children is often more severe and rapidly progressive compared to adults. While Scheimpflug imaging (Pentacam) improves screening, there are no established pediatric guidelines.
Sharon H. Zhao, Carla Berkowitz, Hantamalala Ralay Ranaivo, Kelly Laurenti, Brenda L. Bohnsack, Surendra Basti, Jennifer L. Rossen   +6 more
doaj   +1 more source

Contact lens in keratoconus

Indian Journal of Ophthalmology, 2013
Contact lenses are required for the visual improvement in patients with keratoconus. Various contact lens options, such as rigid gas permeable (RGP) lenses, soft and soft toric lenses, piggy back contact lenses (PBCL), hybrid lenses and scleral lenses ...
Varsha M Rathi, Preeji S Mandathara, Srikanth Dumpati   +2 more
doaj   +1 more source

Measurements of anterior chamber depth, white-to-white distance, anterior chamber angle, and pupil diameter using two Scheimpflug imaging devices [PDF]

, 2014
Purpose: To compare the ocular anterior chamber depth, white-to-white distance, anterior chamber angle, and pupil diameter, as measured with two different Scheimpflug imaging devices.
Antonio Jesus Del Águila-Carrasco (5763764), Robert Montés-Micó (4695973), Santiago García-Lázaro (4655917), Daniel Monsálvez-Romín (4695976), Alberto Domínguez-Vicent (2150602)   +4 more
core   +1 more source

Three-dimensional ghost imaging via the Scheimpflug detection

Optics Express
For previous three-dimensional ghost imaging, the acquisition of absolute distance information is mainly based on the principle of time-of-flight, which usually needs lots of measurements and a large detection/modulation bandwidth product. Here we present a technique called three-dimensional ghost imaging via the Scheimpflug detection (3D-GISD), which ...
Shihao Chang, Jianzhong Liu, Wenlin Gong
openaire   +2 more sources

Atmospheric aerosol monitoring by an elastic Scheimpflug lidar system

, 2015
This work demonstrates a new approach - Scheimpflug lidar for atmospheric aerosol monitoring. The atmospheric backscattering echo of a high-power continuous-wave laser diode is received by a Newtonian telescope and recorded by a tilted imaging sensor ...
Mei, Liang, Brydegaard, Mikkel, Mei, Liang,, Brydegaard, Mikkel,, Lund University.   +4 more
core   +1 more source