Results 91 to 100 of about 13,796 (222)

Visual, vestibular, and ocular motor changes during nitroglycerin‐triggered vestibular migraine

open access: yesHeadache: The Journal of Head and Face Pain, Volume 66, Issue 9, Page 1991-2005, October 2026.
Plain Language Summary Vestibular migraine (VM) is a common cause of intermittent dizziness, but there have been no studies with provoked (induced) VM used to characterize how the vestibular and ocular (vision) systems interact. We injected 20 patients with VM with nitroglycerin to provoke an attack and used a specialized camera to record their eye ...
Maria Dolores Villar‐Martinez   +4 more
wiley   +1 more source

Mixed reality applications in percutaneous stone surgery: A systematic review and meta‐analysis of stone‐free rate and perioperative complications

open access: yesBJUI Compass, Volume 7, Issue 9, September 2026.
Abstract Objectives The aim of this study is to evaluate the effect of mixed reality (MR)‐assisted percutaneous nephrolithotomy (PCNL) on stone‐free rate (SFR), perioperative complications and operative efficiency. Methods A search of PubMed, Embase and Web of Science from inception to February 2026 followed PRISMA guidelines.
Christopher Yong‐Zyn Lo   +10 more
wiley   +1 more source

Contrast-based sensorless adaptive optics for retinal imaging [PDF]

open access: yes, 2015
Conventional adaptive optics ophthalmoscopes use wavefront sensing methods to characterize ocular aberrations for real-time correction. However, there are important situations in which the wavefront sensing step is susceptible to difficulties that affect
Metha, A   +5 more
core   +1 more source

Nailfold capillary phenotypes distinguish juvenile myositis subtypes and associate with disease activity

open access: yesClinical and Translational Medicine, Volume 16, Issue 9, September 2026.
Nailfold capillaroscopy is a non‐invasive imaging tool that can aid in the diagnosis and monitoring of juvenile myositis. Branched nailfold capillary morphology is more common in juvenile myositis patients, particularly those positive for TIF1γ+ autoantibodies. Juvenile myositis patients with more active disease demonstrate increased microhaemorrhages,
Nicholas McClellan   +7 more
wiley   +1 more source

Smartphone ophthalmoscopy: patient and student practitioner perceptions [PDF]

open access: yes, 2020
It can take several years to become proficient at direct ophthalmoscopy; the instrument’s single eyepiece allows only one individual to view the image at a time, which is considered disadvantageous during teaching.
Nagra, Manbir   +3 more
core   +1 more source

Vision and Foraging in Structurally Complex Habitats: Common Moorhens (Gallinula chloropus) See the Way Ahead

open access: yesEcology and Evolution, Volume 16, Issue 9, September 2026.
This study examines how common moorhens balance foraging and predator detection through their visual field configuration. It finds they have a narrow but vertically elongated binocular field for precise feeding, alongside near‐panoramic monocular vision for wide environmental awareness.
Steven J. Portugal   +4 more
wiley   +1 more source

L'ophtalmoscope confocal à fente coulissante, corrigé par optique adaptative : Une plateforme d'imagerie multimodale, haut contraste et à haute cadence d'imagerie

open access: yes, 2023
International audiencePurpose : Adaptive optics (AO) imaging techniques are an exceptional research tool which enables visualization of the retina at a cellular level.
Senée, Pierre   +4 more
core   +1 more source

Optical design and optimization of translational reflective adaptive optics ophthalmoscopes

open access: yes, 2014
Thesis (Ph. D.)--University of Rochester. Institute of Optics, 2014.The retina serves as the primary detector for the biological camera that is the eye.
Dubra, Alfredo   +2 more
core  

Improving high resolution retinal image quality using speckle illumination HiLo imaging [PDF]

open access: yes, 2014
Retinal image quality from flood illumination adaptive optics (AO) ophthalmoscopes is adversely affected by out-of-focus light scatter due to the lack of confocality.
Metha, A, Bedggood, P, Zhou, X
core   +1 more source

Evaluating the Arclight : a low-cost tool to strengthen eye care and training in low resource settings [PDF]

open access: yes
This portfolio thesis for the Doctor of Philosophy (PhD) degree at the University of St Andrews, titled "Evaluating the Arclight: A Low-Cost Tool to Strengthen Eye Care and Training in Low Resource Settings," comprises five research papers published from
Blaikie, Andrew John
core   +1 more source

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