Browsing Optometry and Vision Science by Title
Now showing items 8-27 of 246
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Application of a new grading scale for tear ferning in non-dry eye and dry eye subjects
(Elsevier, 2014-09-14)Purpose: To apply the Masmali tear ferning (TF) grading scale on non-dry eye (NDE) and dry eye (DE) subjects to test the validity of the grading scale in practice, and to describe the grading scale range for NDE and DE. ... -
The Application of Digital Filters to Improve Visibility for People with Maculopathy
(University of Waterloo, 2007-09-28)Purpose: Previous studies have shown that some digital filters can enhance picture-image visibility for people with visual impairment. The ultimate purposes of this study are to determine the improvement of picture-image ... -
Are high lags of accommodation in myopic children due to motor deficits?
(Elsevier, 2017-01)Children with a progressing myopia exhibit an abnormal pattern of high accommodative lags coupled with high accommodative convergence (AC/A) and high accommodative adaptation. This is not predicted by the current models ... -
Aspects of Corneal Fluorescein Staining
(University of Waterloo, 2019-04-25)PURPOSE Evaluating the cornea for epithelial fluorescein staining is a key element of the ocular examination of contact lens wearers and people with dry eye disease. It has long been viewed as a method of visualizing a ... -
Aspects of Dynamic Anterior Surface Aberrations
(University of Waterloo, 2014-01-07)Introduction: The measurement of tear film stability/regularity is very critical in the diagnosis of dry eye. The tear breakup time, which is used as a diagnostic tool in diagnosing dry eye, is very subjective in nature ... -
Assessment of Current and Next Generation of Colour Vision Tests for Occupational Use
(University of Waterloo, 2018-06-19)Introduction: Individuals with congenital colour vision deficiencies are at a greater risk of making an error in colour judgment. Computerized colour vision tests are now available to screen for colour vision defects and ... -
Assessment of ocular aberrations at scaled pupil size and reduced Shack-Hartmann spot number
(University of Waterloo, 2019-05-07)Wavefront aberrations describe the optical imperfections of the eye by measuring the complete refractive elements of the eye. However, the reliability of ocular aberration is uncertain under some challenges and issues. ... -
The association between two quality of life measures for first time low vision device users
(University of Waterloo, 2006)Many individuals with impaired vision experience a decreased quality of life. Quality of life is defined as "the degree to which an individual enjoys the important possibilities of their life. " Vision rehabilitation ... -
The Association between Visual Attention and Body Movement-Controlled Video Games, Balance and Mobility
(University of Waterloo, 2018-09-21)Purpose: Interactive video virtual-reality body movement games such as Xbox Kinect may have potential for training visual attention and physical fitness concurrently in older adults in order to reduce the risk of falls. ... -
Atomic force microscopy analysis of the effect of plasma treatment on gas permeable contact lens surface topography
(Elsevier, 2019-02-23)Purpose: Using atomic force microscopy (AFM) to investigate anterior surface topography (AST) in worn and unworn, plasma surface-treated (PST) and untreated (UT) gas permeable (GP) lenses, and influence of surface topography ... -
Atomic force microscopy and Langmuir–Blodgett monolayer technique to assess contact lens deposits and human meibum extracts
(Elsevier, 2015-07)Purpose: The purpose of this exploratory study was to investigate the differences in meibomian gland secretions, contact lens (CL) lipid extracts, and CL surface topography between participants with and without meibomian ... -
Attentional Factors Underlying Binocular Vision Loss in Amblyopia
(University of Waterloo, 2022-01-13)Amblyopia is a neurodevelopmental disorder of vision that results from abnormal visual experience during early development. In addition to significant vision loss in one eye, individuals with amblyopia experience binocular ... -
Automated Cataract Grading using Smartphone Images
(University of Waterloo, 2021-02-02)A cataract is an age-related eye disease and is one of the leading ophthalmological public health problems in developed and developing countries. Early detection of cataracts is necessary to preserve sight and prevent the ... -
Automated Segmentation of Retinal Optical Coherence Tomography Images
(University of Waterloo, 2018-08-21)Aim. Optical Coherence Tomography (OCT) is a fast and non-invasive medical imaging technique which helps in the investigation of each individual retinal layer structure. For early detection of retinal diseases and the study ... -
Bifocals in children with Down syndrome (BiDS)
(University of Waterloo, 2010-07-28)Down syndrome (DS) is the most common genetic cause of mental challenge in individuals and is associated with many ocular disorders. One of these anomalies which is frequently present in this population is reduced accommodation ... -
Binocular Adaptation to +2 D Lenses in Myopic and Emmetropic Children:
(Wolters Kluwer, 2009-06)Purpose. To compare vergence adaptation to +2 D addition lenses in myopic and emmetropic children and to evaluate the influence of the accommodative-vergence crosslink (AC/A ratio) on this adaptation. Methods. Nine ... -
Binocular adaptation to near addition lenses in emmetropic adults
(Elsevier, 2008-05)Near addition lenses are prescribed to pre-presbyopic individuals for treatment of binocular motor problems such as convergence excess and to control the progression of myopia. To date, no investigation has looked at the ... -
Binocular treatment of amblyopia using videogames (BRAVO): study protocol for a randomised controlled trial
(BioMed Central, 2016-10-18)Amblyopia is a common neurodevelopmental disorder of vision that is characterised by visual impairment in one eye and compromised binocular visual function. Existing evidence-based treatments for children include patching ... -
Binocular vision and fixational eye movements
(University of Waterloo, 2017-07-19)Introduction In observers with amblyopia, abnormal patterns of amblyopic eye (AME) fixational eye movements (FEM) have been associated with monocular (reduced amblyopic eye visual acuity) and binocular sensory deficits ... -
BIOMECHANICAL ALTERATION OF CORNEAL MORPHOLOGY AFTER CORNEAL REFRACTIVE THERAPY
(University of Waterloo, 2006)<strong>Purpose:</strong> Although orthokeratology (non-surgical corneal reshaping, Corneal Refractive Therapy, CRT®) has been used for almost a half century, contemporary CRT's outcomes and mechanisms still require ...