Results 251 to 260 of about 31,142 (277)

Agreement between 2 SS-OCT biometry devices

Journal of Cataract & Refractive Surgery, 2022
Purpose: To assess the agreement between 2 swept-source optical coherence tomography biometry devices, Anterion and IOLMaster 700. Setting: Tertiary referral center, Brisbane, Australia. Design: Prospective comparative study.
Cameron McLintock, Hamed Niyazmand, Shiney Seo, Graham Barrett, Vinay Kumar Nilagiri, James McKelvie   +5 more
openaire   +3 more sources

A time delay correction technique for SS-OCT

Journal of X-Ray Science and Technology, 2015
BACKGROUND: K-trigger signals from light source or external Mach-Zehnder interferometer are commonly used in swept source optical coherence tomography (SS-OCT) to achieve interference signal sampling and resolution enhancement. But extra signal transmission time is required due to the increased complexity of interference system using k-trigger signals,
Yi, Wang, Xiaodong, Chen, Xiaojie, Chen, Daoyin, Yu   +3 more
openaire   +2 more sources

Dual mode-locked swept sources for SS-OCT

SPIE Proceedings, 2016
A novel dual-mode-locking mechanism was developed in order to tune an akinetic swept source (AKSS) based on dispersive cavity at a repetition rate close to, but slightly different from the inverse of the cavity roundtrip. Several optical source configurations emitting in the 1060 nm or 1550 nm wavelength region were developed, characterized and tested ...
Radu F. Stancu, Adrian G. Podoleanu
openaire   +1 more source

Signal Reconstruction in SS-OCT using Compressed Sensing

Conference on Lasers and Electro-Optics, 2018
We applied compressed sensing to SS-OCT for the first time. We use dispesion-tuned fiber laser for non-uniform k-space sampling. We achieved the same resolution and smaller noise in PSF with less sampling data.
Takuma Shirahata, Sze Yun Set, Shinji Yamashita   +2 more
openaire   +1 more source

Benchtop SS-OCT – layout and performance evaluation

2017
Abstract1— Optical coherence tomography (OCT) is a non-invasive biomedical imaging technique that provides high speed and high resolution three dimensional and cross sectional images of biological samples, in vivo and in situ. OCT applications targeting small animals is believed to bring developments in medical techniques, instruments, diagnosis and ...
Domingues, Jose Paulo, Silva, Susana F., Bernardes, Rui, Morgado, A. M.   +3 more
openaire   +1 more source

Agreement of intraocular lens power calculation between 2 SS-OCT–based biometers

Journal of Cataract & Refractive Surgery, 2022
Purpose: To assess agreement of measurements by 2 swept-source optical coherence tomography biometers and to evaluate the prediction error (PE) in intraocular lens power calculation with 7 formulas. Setting: Tertiary public eye hospital. Design:
Oliver A. Pfaeffli, Adrian Weber, Kenneth J. Hoffer, Giacomo Savini, Philipp B. Baenninger, Michael A. Thiel, Leonardo Taroni, Luzia Müller   +7 more
openaire   +2 more sources

SS-OCT–based ocular biometry in an adult Korean population with cataract

Journal of Cataract & Refractive Surgery, 2023
Purpose: To evaluate the characteristics of ocular biometric parameters in adult Korean patients with cataract. Setting: Department of Ophthalmology, Seoul National University Hospital, Seoul, South Korea.
Seonghwan Kim, Richul Oh, Mee Kum Kim, Chang Ho Yoon   +3 more
openaire   +2 more sources

SS‐OCT and SS‐OCT A findings in nascent type 3 neovascularization complicating age‐related macular degeneration

Acta Ophthalmologica
Aims/Purpose: To emphasize the role of Swept‐source optical coherence tomography (SS‐OCT) and SS‐OCT angiography (SS‐OCT A) imaging in identifying and monitoring pre‐exudative type 3 neovascularization.Methods: Patients diagnosed with nascent type 3 neovascularization associated with age‐related macular degeneration were prospectively followed in the ...
Fatma Sakji, Safa Ben Aoun, Rym Maamouri, Ines Fendouli, Selmi Slim, Monia Cheour   +5 more
openaire   +1 more source

Akinetic swept source with adjustable coherence length for SS-OCT

SPIE Proceedings, 2015
An electronically controlled optical swept source (SS) at 1550 nm using mode locking in a dispersive ring cavity is described. Active mode-locking was achieved by directly modulating the current of a semiconductor optical amplifier (SOA) used as a gain medium.
Radu F. Stancu, David A. Jackson, Adrian G. Podoleanu   +2 more
openaire   +1 more source