1. Articles from Kazutaka Kamiya

    1-5 of 5
    1. Comparison of angle-to-angle distance using three devices in normal eyes

      Comparison of angle-to-angle distance using three devices in normal eyes

      Purpose To compare the angle-to-angle (ATA) distance, and the repeatability and the reproducibility of these measurements among the three devices. Methods We performed the ATA measurements in 26 healthy subjects using anterior segment optical coherence tomography (CASIA2, Tomey, Japan), the Scheimpflug camera (Pentacam HR, Oculus, Wetzlar, Germany), and the combined Placido-ring corneal topography and Scheimpflug camera (TMS-5, Tomey). We also compared the repeatability and the reproducibility of the ATA measurements among these three devices. Results The ATA in the CASIA2 group was significantly larger than that in the Pentacam group (Bonferroni test, p  = 0.002), or that in the TMS-5 ...

      Read Full Article
    2. Comparison of angle-to-angle distance using three devices in normal eyes

      Comparison of angle-to-angle distance using three devices in normal eyes

      Purpose To compare the angle-to-angle (ATA) distance, and the repeatability and the reproducibility of these measurements among the three devices. Methods We performed the ATA measurements in 26 healthy subjects using anterior segment optical coherence tomography (CASIA2, Tomey, Japan), the Scheimpflug camera (Pentacam HR, Oculus, Wetzlar, Germany), and the combined Placido-ring corneal topography and Scheimpflug camera (TMS-5, Tomey). We also compared the repeatability and the reproducibility of the ATA measurements among these three devices. Results The ATA in the CASIA2 group was significantly larger than that in the Pentacam group (Bonferroni test, p  = 0.002), or that in the TMS-5 ...

      Read Full Article
    3. Keratoconus detection using deep learning of colour-coded maps with anterior segment optical coherence tomography: a diagnostic accuracy study

      Keratoconus detection using deep learning of colour-coded maps with anterior segment optical coherence tomography: a diagnostic accuracy study

      Objective To evaluate the diagnostic accuracy of keratoconus using deep learning of the colour-coded maps measured with the swept-source anterior segment optical coherence tomography (AS-OCT). Design A diagnostic accuracy study. Setting A single-centre study. Participants A total of 304 keratoconic eyes (grade 1 (108 eyes), 2 (75 eyes), 3 (42 eyes) and 4 (79 eyes)) according to the Amsler-Krumeich classification, and 239 age-matched healthy eyes. Main outcome measures The diagnostic accuracy of keratoconus using deep learning of six colour-coded maps (anterior elevation, anterior curvature, posterior elevation, posterior curvature, total refractive power and pachymetry map). Results Deep learning of the arithmetical ...

      Read Full Article
    4. Predictability of the vault after posterior chamber phakic intraocular lens implantation using anterior segment optical coherence tomography

      Predictability of the vault after posterior chamber phakic intraocular lens implantation using anterior segment optical coherence tomography

      Purpose The aim of this retrospective study was to determine if the vault measurement, after hole implantable collamer lens (hole ICL, KS-AquaPORT) surgery, can be predicted by angle-to-angle (ATA) and white-to-white (WTW) measurements on anterior segment (AS) optical coherence tomography (OCT). Setting Sanno Hospital, Tokyo, Japan. Design Retrospective case series. Methods The study included 44 eyes (23 patients) that were observed for 3 months following hole ICL implantation for myopia or myopic astigmatism. The mean patient age and preoperative spherical equivalent, ATA, and WTW values were 36.2±8.8 years, -6.23±3.41 D, 12.03±0.40 ...

      Read Full Article
    5. Accommodative changes in human eye observed by Kitasato anterior segment optical coherence tomography

      Accommodative changes in human eye observed by Kitasato anterior segment optical coherence tomography

      Purpose To study accommodative changes in the human lens using swept-source optical coherence tomography (Kitasato anterior segment OCT/KAs-OCT), which can image the whole anterior segment of the eye. Methods Thirty-five healthy subjects (mean age 41 years, range 13–79 years) were recruited. Using KAs-OCT, we measured the curvature of the anterior (ASC) and posterior surfaces (PSC), the thickness (LT) of the lens and the anterior chamber depth (ACD) in response to far (0.4 D) and near (10 D) accommodative stimuli. Results In response to accommodative stimuli (0.4/10 D), the mean values ± standard deviations were: radius of ...

      Read Full Article
    1-5 of 5
  1. Categories

    1. Applications:

      Art, Cardiology, Dentistry, Dermatology, Developmental Biology, Gastroenterology, Gynecology, Microscopy, NDE/NDT, Neurology, Oncology, Ophthalmology, Other Non-Medical, Otolaryngology, Pulmonology, Urology
    2. Business News:

      Acquisition, Clinical Trials, Funding, Other Business News, Partnership, Patents
    3. Technology:

      Broadband Sources, Probes, Tunable Sources
    4. Miscellaneous:

      Jobs & Studentships, Student Theses, Textbooks
  2. Topics in the News

    1. (3 articles) Kitasato University
    2. (2 articles) Tomey Corporation
    3. (1 articles) University College London
    4. (1 articles) Kohji Ohbayashi
    5. (1 articles) Advanced Imaging Company Ltd
    6. (1 articles) Axsun Technologies
    7. (1 articles) Technical University of Denmark (DTU)
    8. (1 articles) Columbia University
    9. (1 articles) Peking University
    10. (1 articles) Capital Medical University
    11. (1 articles) Cardiovascular Research Foundation
  3. Popular Articles

  4. Picture Gallery

    Accommodative changes in human eye observed by Kitasato anterior segment optical coherence tomography Predictability of the vault after posterior chamber phakic intraocular lens implantation using anterior segment optical coherence tomography Keratoconus detection using deep learning of colour-coded maps with anterior segment optical coherence tomography: a diagnostic accuracy study Comparison of angle-to-angle distance using three devices in normal eyes Comparison of angle-to-angle distance using three devices in normal eyes A case report of a coronary myocardial bridge with impaired full-cycle ratio during dobutamine challenge Diagnosis of chronic stage of hypertensive retinopathy based on spectral domain optical coherence tomography A Cross-sectional Optical Coherence Tomography Study in Patients on Taxane-based Therapy and A Case Report with the Literature Review Determination of peripapillary vessel density in optic disc drusen using EDI-OCT and OCT angiography Optical coherence tomography features of neovascularization in proliferative diabetic retinopathy: a systematic review Retinal microvascular metrics in untreated essential hypertensives using optical coherence tomography angiography Optical coherence tomography angiography findings of fellow eye of proliferative macular telangiectasia type 2: Long term study