Results 81 to 90 of about 7,330 (214)
Journal of Ophthalmology, 2018 Purpose. To compare measurements of anterior and posterior keratometric values, using a color light-emitting diode corneal topographer and a dual rotating Scheimpflug–Placido topographer. Methods.
Jae Hyuck Lee +5 more
doaj +1 more source
Forme Fruste Keratoconus Imaging and Validation via Novel Multi-Spot Reflection Topography
Case Reports in Ophthalmology, 2013 Background/Aims: This case report aims to evaluate safety, efficacy and applicability of anterior surface imaging in a patient with forme fruste keratoconus (FFKC) based on a novel multi-spot, multicolor light-emitting-diode (LED) tear film-reflection ...
Anastasios John Kanellopoulos +1 more
doaj +1 more source
Mild Topographic Abnormalities that Become More Suspicious on Scheimpflug Imaging [PDF]
, 2009 Purpose Although several screening methods exist, postoperative corneal ectasia after refractive surgery is a severe complication. One possibility for this might be the fact that screening methods may fail in detection of preoperative risk factors such ...
CA. Lackerbauer +5 more
core +1 more source
Journal of Ophthalmology, Volume 2026, Issue 1, 2026.Purpose To compare the difference, correlation, and agreement of anterior chamber parameters measured by Pentacam and CASIA 2. Methods A total of 89 myopic patients (89 right eyes) of Beijing Tongren Hospital were included. Anterior chamber depth (ACD), anterior chamber volume (ACV), and anterior chamber angle (ACA) were measured by Pentacam and CASIA ...
Yi Fan Li +4 more
wiley +1 more source
Image Analysis of Scheimpflug Negatives
Ophthalmic Research, 2009 Evaluation of various long-term studies on changes of different lens opacities, as had been rendered possible by microdensitometric image analysis of the film blackening of Scheimpflug photographs, showed that only in a few special cases an extension of the opacification to adjacent lens layers is to be expected within the observation period of 2–3 ...
Otto Hockwin, Heike Laser, Klaus Kapper
openaire +1 more source
Journal 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
Comparative Topographic and Tomographic Assessment of Post‐LASIK Corneal Ectasia
Journal of Ophthalmology, Volume 2026, Issue 1, 2026.Purpose To evaluate and compare the topographic and tomographic characteristics of post–laser in situ keratomileusis (LASIK) ectasia (PLE) with keratoconus (KC) and normal control eyes using the Sirius imaging system. Methods This comparative cross‐sectional study included eyes with KC, PLE ectasia, and normal control eyes.
Abdelrahman Salman, Yasar Sakarya
wiley +1 more source
Short-Wave infrared atmospheric scheimpflug lidar [PDF]
, 2018 Atmospheric dual-band Scheimpflug lidar is demonstrated at 980 and 1550 nm. Signals are compared during three weather conditions, and the spatio-temporal resolution of the atmospheric structure is considered.
Brydegaard Mikkel +10 more
core +3 more sources
One‐Year Outcomes of Topography‐Guided LASIK for Myopia and Astigmatism
Journal of Ophthalmology, Volume 2026, Issue 1, 2026.Introduction To assess the efficacy and safety of topography‐guided LASIK (TG‐LASIK) in correcting myopia and astigmatism and to evaluate clinical outcomes and visual quality postoperatively. Methods We conducted a prospective study including patients aged 18–40 years with stable refraction for over 12 months.
Shanshan Wei +8 more
wiley +1 more source
Diagnosis of keratoconus with optical coherence tomography
Journal of the Egyptian Ophthalmological Society, 2016 Purpose The aim of the study was to assess the accuracy of optical coherence tomography (OCT) (3D OCT-2000) in diagnosing keratoconus by measuring the central corneal thickness and the central curvature radius.
Mortada A Abozaid, Ashraf M Mohammed
doaj +1 more source