Results 31 to 40 of about 3,801 (190)

Linear-Structured-Light Measurement System Based on Scheimpflug Camera Thick-Lens Imaging

Sensors
A thick-lens, structured-light measurement model is introduced to overcome the oversights in traditional models, which often disregard the impact of lens thickness.
Dongyu Guo, Jiwen Cui, Yuhang Wu
doaj   +2 more sources

Rotating Scheimpflug Imaging Indices in Different Grades of Keratoconus [PDF]

Journal of Ophthalmology, 2016
Purpose. To evaluate accuracy of various Keratoconus (KC) screening indices, in relation to Topographic Keratoconus (TKC) grading. Setting. Al Watany Eye Hospital, Cairo, Egypt. Methods.
Sherine S. Wahba, Maged M. Roshdy, Rania S. Elkitkat, Karim M. Naguib   +3 more
doaj   +3 more sources

Foreign body through the looking glass: Scheimpflug Imaging in inverse contrast

Kerala Journal of Ophthalmology, 2021
A 55-year-old male presented with foreign-body sensation in the left eye, with a history of hammering a chisel. On slit-lamp evaluation, two iron corneal foreign particles with rust ring were noted.
Prasanna Venkatesh Ramesh, Shruthy Vaishali Ramesh   +1 more
doaj   +1 more source

Case report: Utilization of neutral density filters for densitometry analysis of dense corneal opacities

American Journal of Ophthalmology Case Reports, 2022
Purpose: This report describes the technique of utilizing a neutral density filter (NDF) during Scheimpflug imaging of a dense corneal opacity in order to increase data acquisition success and improve data reliability for densitometry analysis ...
Akhil Meka, Cody Moezzi, Daniel Brocks
doaj   +1 more source

Recent Advances in Aerosol and Trace Gas Monitoring by Employing the Scheimpflug Lidar Techniques [PDF]

EPJ Web of Conferences, 2020
Lidar techniques, based on the time-of-flight principle, have been widely employed in atmospheric remote sensing since decades. The Scheimpflug lidar (SLidar) technique, which employing robust high-power laser diodes as light sources and highly ...
Mei Liang, Kong Zheng, Ma Teng, Liu Zhi, Gong Zhenfeng, Liu Kun   +5 more
doaj   +1 more source

Automatic Quantitative Assessment of Lens Opacities Using Two Anterior Segment Imaging Techniques: Correlation with Functional and Surgical Metrics

Diagnostics, 2022
The purpose of this study is to quantitatively assess lens opacity, using a swept-source optical coherence tomography (SS-OCT) device for anterior segment assessment, and establish the correlation with Scheimpflug imaging, corrected distance visual ...
Lars H. B. Mackenbrock, Grzegorz Łabuz, Timur M. Yildirim, Gerd U. Auffarth, Ramin Khoramnia   +4 more
doaj   +1 more source

Keratoconus Detection Based on a Single Scheimpflug Image

Translational Vision Science & Technology, 2020
To introduce a new approach for keratoconus detection based on corneal microstructure observed in vivo derived from a single Scheimpflug image.Scheimpflug single-image snapshots from 25 control subjects and 25 keratoconus eyes were analyzed; from each group, five subjects were randomly selected to provide out-of-sample data.
Consejo, Alejandra, Solarski, Jedrzej, Karnowski, Karol, Rozema, Jos J, Wojtkowski, Maciej, Iskander, D. Robert   +5 more
openaire   +3 more sources

Objective Scheimpflug imaging of the healing cascade and repair process of striate keratopathy with the concept of optical blooming

Indian Journal of Ophthalmology. Case Reports, 2022
To our knowledge, assessment of striate keratopathy (SK) is subjectively done with slit-lamp bio-microscopic examination, which is the most common practice.
Prasanna V Ramesh, Shruthy V Ramesh, K Aji, Prajnya Ray, Meena K Ramesh, Ramesh Rajasekaran   +5 more
doaj   +1 more source

Analysis of keratometric measurements in accordance with axial length in an aged population

Scientific Reports, 2022
To investigate keratometric measurements according to axial length in an aged population. Patients requiring cataract surgery with keratometric measurements from four different ophthalmic devices (autorefractor/keratometer, Scheimpflug imaging, corneal ...
Sung Uk Han, Soyoung Ryu, Hyunjean Jung, Hyunmin Ahn, Sangyeop Kim, Ikhyun Jun, Kyoung Yul Seo, Tae-im Kim   +7 more
doaj   +1 more source

Scheimpflug imaging in anterior megalophthalmos

Indian Journal of Ophthalmology, 2013
We report an anterior megalophthalmos case with decreased corneal thickness and show the findings using Scheimpflug imaging. A 25-year-old male was diagnosed with anterior megalophthalmos. In both eyes, enlarged corneal length was measured. Beside a comparatively good visual acuity, a thin but clear cornea, a fairly deep anterior chamber, and central ...
Nemeth, Gabor, Hassan, Ziad, Berta, Andras, Modis, Laszlo   +3 more
openaire   +2 more sources