Results 31 to 40 of about 13,251 (225)

Emulated retinal image capture (ERICA) to test, train and validate processing of retinal images

open access: yesScientific Reports, 2021
High resolution retinal imaging systems, such as adaptive optics scanning laser ophthalmoscopes (AOSLO), are increasingly being used for clinical research and fundamental studies in neuroscience.
Laura K. Young, Hannah E. Smithson
doaj   +1 more source

Non-common Path Aberration Correction in an Adaptive Optics Scanning Ophthalmoscope [PDF]

open access: yes, 2014
The correction of non-common path aberrations (NCPAs) between the imaging and wavefront sensing channel in a confocal scanning adaptive optics ophthalmoscope is demonstrated.
Dubra, Alfredo, Sulai, Yusufu N.
core   +2 more sources

Higher adaptive optics loop rate enhances axial resolution in nonconfocal ophthalmoscopes.

open access: yesOptics Letters, 2019
In this Letter, we propose a way to better understand the impact of dynamic ocular aberrations in the axial resolution of nonconfocal adaptive optics (AO) ophthalmoscopes via a simulation of the 3D PSF in the retina for various AO-loop rates. We then use
P. Mecê   +7 more
semanticscholar   +1 more source

Smartphone Compatible versus Conventional Ophthalmoscope: A Randomized Crossover Educational Trial

open access: yesJournal of Academic Ophthalmology, 2021
Objective The aim of the study is to compare performance and ease-of-use (EOU) of optic disk assessment using a smartphone direct ophthalmoscope attachment (D-EYE) to the gold standard direct ophthalmoscope (DO).
Rachel Curtis   +6 more
doaj   +1 more source

Effects of Intraframe Distortion on Measures of Cone Mosaic Geometry from Adaptive Optics Scanning Light Ophthalmoscopy [PDF]

open access: yes, 2016
Purpose: To characterize the effects of intraframe distortion due to involuntary eye motion on measures of cone mosaic geometry derived from adaptive optics scanning light ophthalmoscope (AOSLO) images.
Carroll, Joseph   +7 more
core   +2 more sources

The Disc Mantra: An Algorithm for Fundus Description

open access: yesMedEdPORTAL, 2008
Introduction Students and non-ophthalmologists are intimidated by the use of the ophthalmoscope to view and describe the fundus. Ophthalmoscopy has a steep learning curve, and its practices have been marginalized due to several barriers including ...
Linda Lippa
doaj   +1 more source

Accessible digital ophthalmoscopy based on liquid-lens technology [PDF]

open access: yes, 2015
Ophthalmoscopes have yet to capitalise on novel low-cost miniature optomechatronics, which could disrupt ophthalmic monitoring in rural areas. This paper demonstrates a new design integrating modern components for ophthalmoscopy.
Bergeles, C   +8 more
core   +1 more source

Primary health eye care: Evaluation of the competence of medical students in performing fundoscopy with the direct ophthalmoscope

open access: yesSouth African Family Practice, 2010
Background: To evaluate the skill of fifth-year medical students at the University of Cape Town in the performance of fundoscopy at the end of their ophthalmology rotation. Methods: The design was a prospective cohort study.
Johannes S. van Velden   +3 more
doaj   +1 more source

Scope of optometry practice in Trinidad and Tobago: A cross‐sectional study

open access: yesHealth Science Reports, 2023
Background and Aim To report the scope of optometry practice in Trinidad and Tobago to identify areas that need improvement. Methods A cross‐sectional study of optometrists in Trinidad and Tobago was conducted using a validated self‐structured ...
Ngozika E. Ezinne   +4 more
doaj   +1 more source

Noninvasive imaging of the thirteen-lined ground squirrel photoreceptor mosaic. [PDF]

open access: yes, 2016
Ground squirrels are an increasingly important model for studying visual processing, retinal circuitry, and cone photoreceptor function. Here, we demonstrate that the photoreceptor mosaic can be longitudinally imaged noninvasively in the 13-lined ground ...
Dubra, Alfredo   +6 more
core   +1 more source

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