purpose : to study optical coherence tomography (oct) findings in high myopic patients with the history of uncomplicated cataract surgery methods : the sample included 34 eyes of 24 highly myopic patients with an axial length (al) of 26 mm or more and a spherical equivalent (se) of 8.0 diopter (d) or more who had uncomplicated phacoemulsification cataract surgery. octs were done in multiple sec...

Introduction: The aim of the present study was to determine burn intensity in retinal laser photocoagulation based on laser parameters; wavelength, power, beam size and pulse duration, using Optical Coherence Tomography (OCT), fundus camera, physical eye model and computer simulation in a clinical study.Materials and Methods: Participants were 10 adult patients between 50-80 years with prolifer...

The focus of this paper is to summarize the current knowledge on visual pathway damage in neuromyelitis optica (NMO) assessed by magnetic resonance imaging (MRI) and optical coherence tomography (OCT).

Optical coherence tomography (OCT) is an optical imaging technique that provides high-resolution cross-sectional image for clinical and biological field, and the OCT systems have a depth resolution of less than 10 m. Recently, measurement of hardness using endoscopic OCT is required . Fig. 1 Basic configuration of the endoscopic OCT-based elastography using the focusing transducer and bending v...

We demonstrate ultralong-range swept-source optical coherence tomography (OCT) imaging using vertical cavity surface emitting laser technology. The ability to adjust laser parameters and high-speed acquisition enables imaging ranges from a few centimeters up to meters using the same instrument. We discuss the challenges of long-range OCT imaging. In vivo human-eye imaging and optical component ...

Optical coherence tomography (OCT) is a real-time optical imaging technique that is similar in principle to ultrasonography, but employs light instead of sound waves and allows depth-resolved images with near-microscopic resolution. Endoscopic OCT allows the evaluation of broad-field and subsurface areas and can be used ancillary to standard endoscopy, narrow band imaging, chromoendoscopy, magn...

Arterial plaque from a myocardial infarction-prone Watanabe heritable hyperlipidemic (WHHLMI) rabbit is visualized and characterized using a signal to noise ratio enhanced swept-source optical coherence tomography system with a quadrature interferometer (QSS-OCT). A semiconductor optical amplifier is used in the sample arm to amplify the weak signal scattered from arterial plague. Signal to noi...

Optical coherence tomography (OCT) is a non-invasive, real time diagnostic modality that enables detection of oral lesions at an early, relatively harmless stage with improved resolution. OCT gives quantitative and qualitative information of hard and soft tissue by providing a cross-sectional ‘optical biopsy’ of tissue up to 3 mm in depth from the surface. In the present scenario, OCT has emerg...

A fiber-optic-bundle-based optical coherence tomography (OCT) probe method is presented. The experimental results demonstrate this multimode optical fiber-bundle-based OCT system can achieve a lateral resolution of 12 microm and an axial resolution of 10 microm with a superluminescent diode source. This novel OCT imaging approach eliminates any moving parts in the probe and has a primary advant...

PURPOSE To analyze the impact of opacities in the optical pathway and image compression of 32-bit raw data to 8-bit jpg images on quantified optical coherence tomography (OCT) image analysis. METHODS In 18 eyes of nine healthy subjects, OCT images were acquired from the central macula. To simulate opacities in the optical system, neutral-density (ND) filters with linear absorption spectra wer...