Results 71 to 80 of about 415,852 (378)

Orthoptic status before and immediately after heroin detoxification [PDF]

open access: yes, 2004
Aim: To determine whether changes in orthoptic status take place during withdrawal from heroin and/or methadone. Method: A prospective study of patients, using a repeated measures design, attending a 5 day naltrexone compressed opiate detoxification ...
Beaini, A.Y.   +3 more
core   +2 more sources

Non-contact, in-vivo, functional, and structural ophthalmic imaging using multimodal photoacoustic remote sensing (PARS) microscopy and optical coherence tomography (OCT) [PDF]

open access: yesarXiv, 2021
Early diagnosis of ocular diseases improves the understanding of pathophysiology and helps with accurate monitoring and effective treatment. Advanced multimodal ocular imaging platforms play a crucial role in the visualization of the ocular components and provide clinicians with a valuable tool for evaluating different eye diseases. Here, for the first
arxiv  

Label-free, non-contact, in-vivo ophthalmic imaging using photoacoustic remote sensing microscopy [PDF]

open access: yes, 2020
We present the first label-free, non-contact, in-vivo imaging of the ocular vasculature using photoacoustic remote sensing (PARS) microscopy. Both anterior and posterior segments mouse eye were imaged. Vasculature of iris, sclera and retina tissues were clearly resolved.
arxiv   +1 more source

Wavefront curvature sensing for the human eye [PDF]

open access: yes, 2008
In this paper we present a curvature wavefront sensor for the eye. The layout proposed is novel, whilst the algorithm used has been adapted from previously published work [Roddier, F.; Roddier, C. Appl. Opt. 1991, 30, 1325–1327]. The design of the set-up
Cristiano Torti   +5 more
core   +1 more source

Dynamic accommodation measurement using Purkinje reflections and machine learning

open access: yesScientific Reports, 2023
Quantifying eye movement is important for diagnosing various neurological and ocular diseases as well as AR/VR displays. We developed a simple setup for real-time dynamic gaze tracking and accommodation measurements based on Purkinje reflections, which ...
Faik Ozan Ozhan   +3 more
doaj   +1 more source

Does methylphenidate treatment affect functional and structural ocular parameters in patients with attention deficit hyperactivity disorder? - A prospective, one year follow-up study

open access: yesIndian Journal of Ophthalmology, 2022
Purpose: Methylphenidate hydrochloride, which blocks the reuptake mechanisms of dopamine and norepinephrine, is used in attention deficit hyperactivity disorder (ADHD) treatment. Methylphenidate has many general side effects including ocular findings. In
Pınar Bingöl-Kızıltunç   +2 more
doaj   +1 more source

The influence of tinted lenses upon ocular accommodation

open access: yesVision Research, 2001
We determined the effect upon accommodative responses of tinted lenses prescribed for the relief of visual discomfort in a group of five long term lens wearers. Static and dynamic responses were measured under four viewing conditions (1) prescribed tinted lens (2) neutral density filter (3) tinted lens of complementary colour and (4) no absorptive lens.
Lyle S. Gray   +2 more
openaire   +3 more sources

Does the Badal optometer stimulate accommodation accurately? [PDF]

open access: yes, 2016
Postprint (author's final ...
Aldaba Arévalo, Mikel   +3 more
core   +2 more sources

Quantification of scleral changes during dynamic accommodation [PDF]

open access: yes, 2023
The mechanics of accommodation is a complex process that involves multiple intraocular ocular structures. Recent studies suggest that there is deformation of the sclera during accommodation that may also play a role in accommodation, influencing ciliary ...
Cabeza-Gil, Iulen   +3 more
core   +1 more source

Saccades reduce latency and increase velocity of ocular accommodation [PDF]

open access: yesVision Research, 1999
Horizontal vergence can be stimulated binocularly with disparity (disparity vergence) or monocularly with accommodation (accommodative vergence). The latter results from a neural cross-coupling that causes both horizontal vergence and accommodation to respond when either one is stimulated [Alpern, M., & Ellen, P. (1956).
David R. Pope   +3 more
openaire   +2 more sources

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