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Basic Vision Research With Clinical Applications And Science Education Assessments, Andrew Wilson 2017 The University of Maine

Basic Vision Research With Clinical Applications And Science Education Assessments, Andrew Wilson

Electronic Theses and Dissertations

Visual Acuity (VA) examinations are one of the most commonly conducted medical assessment throughout the world. Recent advances in computer technology allows for new forms of visual assessment to be conducted. In Part I of this thesis I demonstrate the capability of an automated computer program named VISION to assess human visual acuities. Different color combinations of an object against a background emitted from a computer screen are used to examine a variety of human color vision acuities. Results indicated a large difference in acuity scores between human subjects tested with these different color combinations. A single human subject exhibits ...


Latanoprost And Timolol In Hydrogel Soft Drug-Dispensing Contact Lenses: A Comparative Analysis, Neha Potdar 2017 Virginia Commonwealth University

Latanoprost And Timolol In Hydrogel Soft Drug-Dispensing Contact Lenses: A Comparative Analysis, Neha Potdar

Virginias Collegiate Honors Council Conference

Glaucoma patients only can instill glaucoma eye drops. This results in 1-7% absorption of the medication. Surveys show that patients forget to take their medication and have difficulty inserting their eye drops. Researchers at the Massachusetts Eye and Ear Infirmary have developed latanoprost drug-dispensing hydrogel soft contact lenses that dispense the drug to help facilitate the process. However, some glaucoma patients do not respond to latanoprost because they have uveitic glaucoma or do not want to experience latanoprost’s ocular side effects. Patients need an alternative which can be inserted into these contact lenses. Another commonly used glaucoma drug is ...


Targeted Aav5-Smad7 Gene Therapy Inhibits Corneal Scarring In Vivo, Suneel Gupta, Jason T. Rodier, Ajay Sharma, Elizabeth A. Giuliano, Prashant R. Sinha, Nathan P. Hesemann, Arkasubhra Ghosh, Rajiv R. Mohan 2017 Harry S. Truman Memorial Veterans' Hospital

Targeted Aav5-Smad7 Gene Therapy Inhibits Corneal Scarring In Vivo, Suneel Gupta, Jason T. Rodier, Ajay Sharma, Elizabeth A. Giuliano, Prashant R. Sinha, Nathan P. Hesemann, Arkasubhra Ghosh, Rajiv R. Mohan

Pharmacy Faculty Articles and Research

Corneal scarring is due to aberrant activity of the transforming growth factor β (TGFβ) signaling pathway following traumatic, mechanical, infectious, or surgical injury. Altered TGFβ signaling cascade leads to downstream Smad (Suppressor of mothers against decapentaplegic) protein-mediated signaling events that regulate expression of extracellular matrix and myogenic proteins. These events lead to transdifferentiation of keratocytes into myofibroblasts through fibroblasts and often results in permanent corneal scarring. Hence, therapeutic targets that reduce transdifferentiation of fibroblasts into myofibroblasts may provide a clinically relevant approach to treat corneal fibrosis and improve long-term visual outcomes. Smad7 protein regulates the functional effects of TGFβ signaling ...


Neuro-Behavioral Effects Of Luminance Level On Visual Performance And Discomfort With High Dynamic Range Displays, Shun-nan Yang, Manho Jang, Ju Liu 2017 Pacific University

Neuro-Behavioral Effects Of Luminance Level On Visual Performance And Discomfort With High Dynamic Range Displays, Shun-Nan Yang, Manho Jang, Ju Liu

VPI Research

High dynamic range (HDR) displays are designed to simulate the range of perceived brightness afforded by the real world. To study how visual performance and visual comfort are affected by luminance level, 34 participants with normal vision were first asked to discriminate the brightness of two circles presented on LCD and OLED screens to determine the luminance threshold for brightness discrimination. They then judge the orientation of a circular grating target alternating with a luminance circle while their visually-evoked potentials and viewing discomfort was assessed. Results show contrast ratio is more important than luminance difference in brightness discrimination. Regression model ...


Barriers To Glaucoma Case Finding As Perceived By Optometrists In Ireland, Catriona Barrett, Colm O'Brien, John Butler, James Loughman 2017 Dublin Institute of Technology

Barriers To Glaucoma Case Finding As Perceived By Optometrists In Ireland, Catriona Barrett, Colm O'Brien, John Butler, James Loughman

Articles

Background: This research was designed to provide an in-depth exploration of the perceptions of optometrists relating to the challenges of glaucoma case finding in the Irish health-care system.

Methods: A survey was developed, piloted and distributed for anonymous completion by optometrists registered to practice in Ireland. The survey included 10 five-level Likert items exploring potential barriers to glaucoma detection and a free-text box for participants to comment more broadly.

Results: One hundred and ninety-nine optometrists (27 per cent of registrants) responded to the survey. Among the barriers identified, there was notable agreement (71 per cent) with the need for extra ...


Visual Impairment And Factors Associated With Difficulties With Daily Tasks, Anne T. Riddering 2016 Western Michigan University

Visual Impairment And Factors Associated With Difficulties With Daily Tasks, Anne T. Riddering

Dissertations

In the past 10 years, the number of American adults with visual impairments has increased from 1 million to 4 million and is expected to double to 8 million people by the year 2050 (The Eye Diseases Prevalence Research Group, 2004; National Eye Institute, 2013). Therapies to treat retinal diseases causing visual impairment, such as diabetic retinopathy and age-related macular degeneration (Massof, 2002; Mogk, 2011), have evolved in the past two decades (Gupta et al., 2013; Hooper & Guymer, 2003), but little research has examined recent population and difficulties with performing daily activities. Different types of professionals, including ophthalmologists, optometrists, occupational therapists, orientation and mobility specialists, vision rehabilitation therapists, and low vision therapists, work to assist adults with visual impairments remain independent with daily tasks, and an understanding of population characteristics is critical to providing successful treatment (Court, McLean, Guthrie, Mercer, & Smith, 2014; Johnson & Romanello, 2005; Salive, 2013). The studies in this three-paper dissertation examine difficulties with daily tasks, factors contributing to these difficulties, and similarities and differences ...


When The Challenges Of Aging And Visual Impairment Collide: Working Together To Build A Toolbox Of Rehab Ideas Of Best Care For Older Adults, Regula H. Robnett, Kathy Clarrage 2016 University of New England

When The Challenges Of Aging And Visual Impairment Collide: Working Together To Build A Toolbox Of Rehab Ideas Of Best Care For Older Adults, Regula H. Robnett, Kathy Clarrage

Occupational Therapy Faculty Presentations

Workshop/presentation by Regi Robnett, Ph.D., OTR/L, FAOTA, professor in the UNE Department of Occupational Therapy and Kathy Clarrage, COMS, Certified Orientation and Mobility Specialist for the State of Maine. Given at the North East Chapter of the Association for Education and Rehabilitation for the Blind and Visually Impaired (NEAER) conference, this presentation encouraged health care providers to work as a team to care for older, visually impaired adults. The professional audience included orientation and mobility specialists, vision rehabilitation therapists, low vision specialists, administrators in the field of blindness, social workers in the field of blindness and vocational ...


Recording Of High Efficiency Volume Bragg Gratings In A Photopolymer Using Diffraction From Very Weak Pre-Recorded Gratings, Denis Bade 2016 Dublin Institute of Technology

Recording Of High Efficiency Volume Bragg Gratings In A Photopolymer Using Diffraction From Very Weak Pre-Recorded Gratings, Denis Bade

Articles

No abstract provided.


Addressing Disability In The Health System At Caritas Takeo Eye Hospital, Manfred Morchen, Gail Ormsby, Te Serey Bonn, David Lewis 2016 Takeo Eye Hospital

Addressing Disability In The Health System At Caritas Takeo Eye Hospital, Manfred Morchen, Gail Ormsby, Te Serey Bonn, David Lewis

Gail Ormsby

The article describes how the CARITAS Takeo Eye Hospital (CTEH) in Cambodia has worked hard to be more inclusive of people with disabilities. It mentions that the process to address the disability at the CTEH began in 2008 with the construction of new premises with universal design which reduced the physical barriers for everybody. The CTEH staff was trained on inclusion by CBM Australia and the Nossal Institute for Global Health; disability-inclusive practices reported a positive outcome.


Knowledge, Attitudes And Practice Of Diabetes In Rural Bangladesh: The Bangladesh Population Based Diabetes And Eye Study, Fakir M. Amirul Islam, Rahul Chakrabarti, Mohamed Dirani, Mohamed T. Islam, Gail Ormsby, Mohamed Wahab, Christine Critchley, Robert P. Finger 2016 Swinburne University of Technology

Knowledge, Attitudes And Practice Of Diabetes In Rural Bangladesh: The Bangladesh Population Based Diabetes And Eye Study, Fakir M. Amirul Islam, Rahul Chakrabarti, Mohamed Dirani, Mohamed T. Islam, Gail Ormsby, Mohamed Wahab, Christine Critchley, Robert P. Finger

Gail Ormsby

Background: To assess the Knowledge, Attitudes and Practice (KAP) amongst the general community regarding type 2diabetes mellitus (DM) in rural Bangladesh. Methods: Data was collected using cluster random sampling from 3104 adults residing in a rural district in Bangladesh. Participants underwent a KAP questionnaire survey regarding assessing diabetes, socio-demographic and medical history. Descriptive, Chi-square and regression analyses were performed. Results: Participants were aged between 30 and 89 years (M = 51, SD = 11.8) and 65.5% were female. The prevalence of diabetes was found to be 8.3%. The majority (93%) reported to have heard of diabetes, yet only 4 ...


Research/Internship In Optometry, Alisha Trivedi 2016 Nova Southeastern University

Research/Internship In Optometry, Alisha Trivedi

Trick to the Treat of Internships and Research

This is an enriching experience for undergraduate students, giving them a clinical and hands on experience in the field of Optometry. Students will have the opportunity to participate in research, see participants, shadow optometrists, engage in new studies, and possibly present their research at the end of their second semester. Students will work under a health professional at HPD and first observe their work along with the work of the interns before them to get familiar with the position. They will typically see participants for research about 2-3 times a week, and work on their term paper outside of that.


Puzzleart Therapy: Connecting The Pieces In Search Of Answers, Jennifer Fortuna 2016 WMU

Puzzleart Therapy: Connecting The Pieces In Search Of Answers, Jennifer Fortuna

Open Journal of Occupational Therapy: Occupation and the Artist

Alli Berman has been an artist, educator, author, and lecturer for more than 25 years. Her art can be found in private, corporate, and nonprofit collections around the world. Berman is the creator of PuzzleArt, a series of small abstract paintings that combine to form a modular puzzle. When a stroke impacted Berman’s quality of life, she turned to art for answers. Engagement in a meaningful activity, such as painting, provided her motivation and strength for continued physical and psychological healing. The PuzzleArt concept evolved from a simple exercise that helped Berman to fit all of the missing pieces ...


Puzzleart Therapy: Connecting The Pieces In Search Of Answers, Jennifer Fortuna MS, OTR/L 2016 Western Michigan University

Puzzleart Therapy: Connecting The Pieces In Search Of Answers, Jennifer Fortuna Ms, Otr/L

The Open Journal of Occupational Therapy

Alli Berman, a New York based artist, provided the cover art for the Fall 2016 issue of The Open Journal of Occupational Therapy (OJOT). “Sunlight Underwater” is a 12 piece PuzzleArt painting made from acrylic on American maple that measures 22x30. The PuzzleArt concept began as a simple exercise that evolved into a therapeutic modality. When a sudden stroke impacted Berman’s well-being and quality of life, it was art that helped her to make connections during recovery.


Development Of Holographic Sensors For Monitoring Relative Humidity And Temperature, Tatsiana Mikulchyk 2016 Dublin Institute of Technology

Development Of Holographic Sensors For Monitoring Relative Humidity And Temperature, Tatsiana Mikulchyk

Doctoral

Photonic structures capable of responding to an analyte with an easily identifiable change in their optical properties have generated wide interest due to their possible application as holographic sensors. Holographic sensors are considered a low-cost, lightweight and disposable technology, and have potential for application in different areas ranging from medical diagnostics to environmental sensing including the monitoring of environmental temperature and relative humidity. In spite of the existing wide range of temperature and humidity sensors, holographic sensors are of special interest as they can provide fast, real-time, reversible or irreversible, visual colorimetric or electronic readouts. The main objective of this ...


Effect Of 7 And 20 Hz Flicker Glasses On Fixation And Saccadic Oculography, Accommodation, And Stereoacuity, Muteb K. Alanazi 2016 Pacific University

Effect Of 7 And 20 Hz Flicker Glasses On Fixation And Saccadic Oculography, Accommodation, And Stereoacuity, Muteb K. Alanazi

College of Optometry

Purpose: Recent studies have investigated Eyetronix Flicker Glasses (EFG) in treating refractive amblyopia. EFG provides rapid alternating occlusion of the two eyes at a particular rate. They have been shown to cause a significant improvement in visual acuity, contrast sensitivity, and stereoacuity in amblyopes. Amblyopia is a syndrome marked by a reduction in visual acuity as well as other monocular functions like fixations, saccadic eye movements, and accommodative lag. The purpose of this study was to investigate the intra-treatment effect of 7 and 20 Hz flicker on fixations, saccades, and the accommodative lag during reading, and on stereoacuity.

Methods: A ...


A Public Health Approach Of Cataract Prevention Through Nutrition, Akanksha 2016 Akanksha

A Public Health Approach Of Cataract Prevention Through Nutrition, Akanksha

College of Optometry

Purpose: To conduct a literature review related to preventing cataract through nutrition either in the form of consuming nutrient dense foods or supplements and suggest some public health policy recommendations.

Methods: A systematic literature search was performed using Web of Science and Ovid Medline, with Population, Intervention, Control and Outcome (PICO) methodology. Studies were graded depending upon strength of evidence and clinical recommendation.

Results: There are enough evidence supporting the use of multivitamins decreases the risk of cataract. Higher intakes of antioxidants and vitamins has shown a protective association with the incidence or progression of cataract.

Conclusion: Developing healthy dietary ...


Natural Ways Of Myopia Control: A Public Health Approach For The Prevention Of Myopia, Hardew Mahto 2016 Pacific University

Natural Ways Of Myopia Control: A Public Health Approach For The Prevention Of Myopia, Hardew Mahto

College of Optometry

INTRODUCTION: The prevalence of myopia has increased to 90% of the young adult population in some Asian countries, and according to the recent studies, fifty percent of world population will become myopic by 2050. Some studies believe that this recent increase in prevalence of myopia is a manifestation of sedentary lifestyle and poor diet. Myopia has already become a public health issue for the world population.

PURPOSE: The purpose of this paper is to examine the mechanisms responsible for the development of myopia, identify the public health recommendations to modify modern lifestyle behaviors, review the literature that provides a basis ...


Treating Anisekonia With Stock Base Curve Manipulation In Asymptomatic Adults, Noura I. Al Habdan 2016 Pacific University

Treating Anisekonia With Stock Base Curve Manipulation In Asymptomatic Adults, Noura I. Al Habdan

College of Optometry

Purpose: The purpose of this study was to predict the base curve of the spectacle correction of patients in order to minimize their aniseikonia. We hypothesized that in order to correct the patient’s aniseikonia, we can manipulate the base curve of the subject’s prescription to change the magnification, without ultimately altering the prescription.

Methods: Ten female adults with spherical equivalent of ≥ 1 D anisometropia, and visual acuity of 20/25 or greater corrected vision, were studied. The participants were evaluated for anisometropia while wearing their habitual spectacles (i.e. non-size lens) and reassessed 4 weeks later (± 2 weeks ...


Prescribing Comfortable Prisms To Individuals With Binocular Single Vision To Optimize Stereopsis, James Kundart, Saad R. Almajed 2016 Pacific University

Prescribing Comfortable Prisms To Individuals With Binocular Single Vision To Optimize Stereopsis, James Kundart, Saad R. Almajed

College of Optometry

Objective: The purpose of the current study was to investigate whether prisms that are selected by participants minimize binocular blur, increase visual comfort, and yield better stereoacuity. We also investigated whether fixation disparity (FD) and associated phoria are the only reason for the increased stereothreshold in individuals with binocular single vision.

Methods: Two groups of participants (14 males, 16 females; age 19-53 years old, mean 26.17±5.65 SD) without strabismus, amblyopia, or suppression were included in the study. Their imperfect stereoacuity (i.e., induced by sphere lenses) was measured without and with prisms. The prisms were obtained with ...


A Systems Framework For Development Projects And Partnerships In Eye Health Training, Diane Wallace 2016 Dublin Institute of Technology

A Systems Framework For Development Projects And Partnerships In Eye Health Training, Diane Wallace

Doctoral

Purpose: Development projects in eye health have evolved over the past fifteen years in response to VISION 2020: The Right to Sight. Estimates that 285 million people, mainly in the developing world, are needlessly vision impaired largely due to the lack of trained eye health professionals have moved development initiatives away from vertical, service delivery approaches towards the establishment of more sustainable, locally owned professional training programmes in an effort to ensure long term production of adequately trained human resource capacity to address this challenge. The Mozambique Eyecare Project was one such initiative, established as a solution to the challenge ...


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