Results 1 to 10 of about 15,986,900 (239)

Uncovering the Characteristics of Pupil Cycle Time (PCT) in Neuropathies and Retinopathies [PDF]

open access: yesVision
Pupil cycle time (PCT) estimates the dynamics of a biofeedback loop established between pupil size and stimulus luminance, size or colour. The PCT is useful for probing the functional integrity of the retinopupillary circuits, and is therefore ...
Laure Trinquet   +7 more
doaj   +4 more sources

Pupil Cycle Time Distinguishes Migraineurs From Subjects Without Headache [PDF]

open access: yesFrontiers in Neurology, 2019
Migraine is a neurological disorder characterized by paroxysms of head pain accompanied by trigeminovascular system activation and autonomic dysfunction. Diagnosis is currently based on clinical diagnostic criteria. Though physiological differences exist
Melissa M. Cortez   +4 more
doaj   +2 more sources

Pupil cycle time and contrast sensitivity in type II diabetes mellitus patients: A pilot study [PDF]

open access: yesIndian Journal of Ophthalmology, 2011
Context: Pupil cycle time (PCT) has been widely used for examination of ocular diabetic autonomic neuropathy (DAN). Aims: The primary aim of this study was to evaluate the difference of contrast sensitivity according to PCT results, and the secondary aim
Hoyoung Lee   +2 more
doaj   +2 more sources

Predictive interception across speed profiles [PDF]

open access: yesFrontiers in Neural Circuits
Visuomotor interception requires predicting a moving target’s future state to compensate for sensorimotor delays. Predictive control has been studied mainly under constant-speed motion. How observers adapt when the temporal structure of target speed (vT)
Inmaculada Márquez   +3 more
doaj   +2 more sources

Correlation of Pupil Cycle Time and Postural Hypotension as a Marker for Diabetic Neuropathy [PDF]

open access: yesJournal of Clinical and Diagnostic Research, 2023
Introduction: Diabetic Neuropathy (DN) can involve autonomic nervous system like cardiovascular system and pupillary reflex. Cardiovascular DN can be measured by estimating the change in Blood Pressure (BP) based on position.
Vasanthi B Kotian, Puneet Hegde
doaj   +1 more source

Pupillary reflex disorders in strabismic amblyopia with concomitant alternating squint

open access: yesРоссийский офтальмологический журнал, 2022
Purpose. To study pupillary reflexes (pupillary cycle time and pupillary reaction — V) in patients with strabismic amblyopia and concomitant alternating strabismus.   Material and methods.
A. I. Berdibaeva, V. A. Usenko
doaj   +1 more source

Edge Light Pupil Cycle Time as A Measure of Optic Nerve Function

open access: yesDelhi Journal of Ophthalmology, 2011
Purpose: To study pupil cycle time (PCT) in Indian subjects and compare the data with other relevant studies Methods: Fifty subjects from the outpatient department of Guru Nanak Eye Centre were included and evaluated.
J L Goyal   +3 more
doaj   +1 more source

Frosted branch angiitis, neuroretinitis as initial ocular manifestation in Behçet disease

open access: yesIndian Journal of Ophthalmology, 2011
Behçet disease is an idiopathic, multisystem disorder characterized by recurrent episodes of orogenital ulceration and vasculitis of the veins and arteries of all calibers.
Abdullah Al-Mujaini, Upender K Wali
doaj   +1 more source

Photodynamic monotherapy or combination treatment with intravitreal triamcinolone acetonide, bevacizumab or ranibizumab for choroidal neovascularization associated with pathological myopia

open access: yesIndian Journal of Ophthalmology, 2011
This retrospective, interventional case series analyses treatment outcomes in eyes with choroidal neovascularization (CNV) secondary to pathological myopia, managed with photodynamic therapy, (PDT), (Group 1, N = 11), PDT and intravitreal triamcinolone ...
Pukhraj Rishi   +8 more
doaj   +1 more source

Ocular disorders in children with learning disabilities in special education schools of Pune, India

open access: yesIndian Journal of Ophthalmology, 2011
Aim: The aim was to study and treat ocular disorders in children with learning disabilities (cLDs) and explore associations with their perinatal history.
Parikshit Gogate   +5 more
doaj   +1 more source

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