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107 full-text articles. Page 1 of 5.

A Comparative Cytotoxic Evaluation Of Acrylamide And Diacetone Acrylamide To Investigate Their Suitability For Holographic Photopolymer Formulations, Dervil Cody, Alan Casey, Izabela Naydenova, Emilia Mihaylova 2013 Dublin Institute of Technology

A Comparative Cytotoxic Evaluation Of Acrylamide And Diacetone Acrylamide To Investigate Their Suitability For Holographic Photopolymer Formulations, Dervil Cody, Alan Casey, Izabela Naydenova, Emilia Mihaylova

Articles

The comparative cytotoxic evaluation of two monomers Diacetone Acrylamide (DA) and Acrylamide (AA), used in holographic photopolymer formulations, is reported. Two normal cell lines were used: BEAS-2B and HaCaT. Cellular viability was assessed using the MTT assay for three different exposure times. A difference of two orders of magnitude is observed in the Lethal Dose (LD50) concentrations of the two monomers. Diacetone Acrylamide exhibits a significantly lower toxicity profile in comparison to Acrylamide at all exposure times. This result justifies the replacement of Acrylamide with Diacetone Acrylamide in the photopolymer formulation, with the view to reducing occupational hazard risks for ...


Open Access Publishing: Opportunities And Challenges, James Kundart 2013 Pacific University

Open Access Publishing: Opportunities And Challenges, James Kundart

Faculty Scholarship (COO)

No abstract provided.


An Economic Analysis Of The Impact Of Refractive Error In Mozambique, Stephen J. Thompson 2013 Dublin Institute of Technology

An Economic Analysis Of The Impact Of Refractive Error In Mozambique, Stephen J. Thompson

Conference Papers

Mozambique eyecare project carried out in June 2013 to estimate the socio-economic benefit of an Optometry Programme by calculating the benefits of addressing refractive error in terms of productivity gained as a result of the intervention.


The Development Of A Public Optometry System In Mozambique: A Cost Benefit Analysis, Stephen J. Thompson, James Loughman 2013 Dublin Institute of Technology

The Development Of A Public Optometry System In Mozambique: A Cost Benefit Analysis, Stephen J. Thompson, James Loughman

Articles

No abstract provided.


Evaluations Of Exit Competencies Of Optometrists In Mozambique, Kajal Shah, James Loughman 2013 Dublin Institute of Technology

Evaluations Of Exit Competencies Of Optometrists In Mozambique, Kajal Shah, James Loughman

Conference Papers

Introduction: The appropriate education for eye health workers is a key determinant of sustainable eye health care systems, and the solution to avoidable blindness and visual impairment. The Mozambique Eye care Project (MEP), is developing the country's first indigenously trained optometrists using a competency-based education curriculum.

Aims: The principal aim is to evaluate the exit clinical competencies of the first optometry graduates in Mozambique and to inform the evaluation of the competency curriculum.

Methods: Using UK based competencies as a benchmark; nine final year students were examined to assess competences in six core subjects.Further information about factors relating ...


Evaluations Of Exit Competencies Of Optometrists In Mozambique, Kajal Shah, James Loughman 2013 Dublin Institute of Technology

Evaluations Of Exit Competencies Of Optometrists In Mozambique, Kajal Shah, James Loughman

Other

Introduction: The appropriate education for eye health workers is a key determinant of sustainable eye health care systems, and the solution to avoidable blindness and visual impairment. The Mozambique Eye care Project (MEP), is developing the country's first indigenously trained optometrists using a competency-based education curriculum.

Aims: The principal aim is to evaluate the exit clinical competencies of the first optometry graduates in Mozambique and to inform the evaluation of the competency curriculum.

Methods: Using UK based competencies as a benchmark; nine final year students were examined to assess competences in six core subjects.Further information about factors relating ...


100 Commonly Prescribed Drugs, Jessica Tran, Len Hua 2013 Pacific University

100 Commonly Prescribed Drugs, Jessica Tran, Len Hua

Faculty Scholarship (COO)

100 Commonly Prescribed Drugs: A resource for interns and clinicians


Amigos Eye Care: Student-Run Volunteer Optometric Services For Humanity, James Kundart, Charlene Walton 2013 Pacific University

Amigos Eye Care: Student-Run Volunteer Optometric Services For Humanity, James Kundart, Charlene Walton

Faculty Scholarship (COO)

No abstract provided.


Reversal Of Altitudinal Visual Field Defect In A Pediatric Patient With Ehlers-Danlos Syndrome, James Kundart, Vivian Diep, Hayden M. Nguyen 2013 Pacific University

Reversal Of Altitudinal Visual Field Defect In A Pediatric Patient With Ehlers-Danlos Syndrome, James Kundart, Vivian Diep, Hayden M. Nguyen

Faculty Scholarship (COO)

No abstract provided.


Induced Vertical Disparity Effects On Local And Global Stereopsis, Hamed Momeni-Moghaddam, Frank Eperjesi, James Kundart, Hamideh Sabbaghi 2013 Pacific University

Induced Vertical Disparity Effects On Local And Global Stereopsis, Hamed Momeni-Moghaddam, Frank Eperjesi, James Kundart, Hamideh Sabbaghi

Faculty Scholarship (COO)

Although significant amounts of vertical misalignment can have a noticeable effect on visual performance, there is less conclusive evidence about the effect of very small amounts of vertical disparity on quantified stereopsis. Hence, the aim of this study was to investigate the effects of induced vertical disparity on local and global stereopsis at near.


Relationship Between Fear Of Falling And Mobility Varies With Visual Function Among Older Adults, Orna A. Donoghue, Harriet Ryan, Eoin Duggan, Ciaran Finucane, George M. Sava, Hilary Cronin, James Loughman, Rose Anne Kenny 2013 Dublin Institute of Technology

Relationship Between Fear Of Falling And Mobility Varies With Visual Function Among Older Adults, Orna A. Donoghue, Harriet Ryan, Eoin Duggan, Ciaran Finucane, George M. Sava, Hilary Cronin, James Loughman, Rose Anne Kenny

Articles

Aim: The present study examined the association between vision, fear of falling and fear-related activity restriction, and assessed the effect of vision on the relationship between fear of falling and mobility, using data from a nationally representative sample of community-dwelling adults aged ≥50 years. Methods: Participants (n = 5003) completed an interview and health assessment (including Timed Up-and-Go, vision and cognitive tests). Visual acuity and contrast sensitivity were assessed using an Early Treatment Diabetic Retinopathy Study logMAR chart and Functional Vision Analyzer, respectively. Participants self-reported their vision as excellent, very good, good, fair or poor. They were assigned to no fear ...


Impact Of Computer Experience On The Viability And Repeatablity Of The Moorfields Motion Displacement Test In A Developing And Underserved African Setting, James Loughman, Carmen Gonzalez Alvarez, Gay Mary Verdon-Roe, Roger Anderson, Ramos Antonio Manuel, Kovin Naidoo 2013 Dublin Institute of Technology

Impact Of Computer Experience On The Viability And Repeatablity Of The Moorfields Motion Displacement Test In A Developing And Underserved African Setting, James Loughman, Carmen Gonzalez Alvarez, Gay Mary Verdon-Roe, Roger Anderson, Ramos Antonio Manuel, Kovin Naidoo

Articles

Background: The current study was designed to explore the effect of computer experience on the viability and testretest repeatability of the Moorfields Motion Displacement Test (MMDT), a novel computer-driven glaucoma screening device, in an African community setting. Methods: 164 healthy subjects were recruited from a semi-rural Mozambican environment, and stratified according to computer experience (computer naïve: n=85, computer familiar: n=79). A suprathreshold screening test algorithm was employed, and the global probability of true damage (GPTD), testing time (TT) and false positive (FP) response rate were recorded. The visual field test was conducted twice on the same eye, and ...


Suitability And Repeatability Of A Photostress Recovery Test Device, The Macular Degeneration Detector (Mdd-2), For Diabetes And Diabetic Retinopathy Assessment, James Loughman, Matthew Ratzlaff, Brittany Foerg, Paul Connell 2013 Dublin Institute of Technology

Suitability And Repeatability Of A Photostress Recovery Test Device, The Macular Degeneration Detector (Mdd-2), For Diabetes And Diabetic Retinopathy Assessment, James Loughman, Matthew Ratzlaff, Brittany Foerg, Paul Connell

Articles

Background: Diabetic retinopathy can result in impaired photostress recovery time despite normal visual acuity and fundoscopic appearance. The Macular Degeneration Detector (MDD-2) is a novel flash photostress recovery time device. In this study, we examine the repeatability of the MDD-2 in normal and diabetic subjects. Methods: One hundred and ninety one (90 women, 101 men) subjects were recruited and divided into 1 of the 3 study groups (normal controls, n = 40; diabetes no retinopathy, n = 98; nonproliferative diabetic retinopathy, n = 53). Photostress recovery time was measured three times in the study eye using the MDD-2, each measurement separated by a ...


Evidence Of Lower Macular Pigment Optical Density In Chronic Open Angle Glaucoma, Estera Igras, James Loughman, Matthew Ratzlaff, Ronal O'Caoimh, Colm O'Brien 2013 Dublin Institute of Technology

Evidence Of Lower Macular Pigment Optical Density In Chronic Open Angle Glaucoma, Estera Igras, James Loughman, Matthew Ratzlaff, Ronal O'Caoimh, Colm O'Brien

Articles

Background/aims Macular pigment (MP) plays an important role in visual function and in the protection of the retina from oxidative damage. It is not known whether glaucoma, a progressive neurodegenerative disease of the optic nerve, is associated with alterations in MP. This study was designed to investigate the relationship, if any, between the optical density of MP optical density (MPOD) and glaucoma.

Methods 40 subjects (23 males, 17 females) with open angle glaucoma (mean age 69 ±11), and 54 normal controls (23 males, 31 females) without ocular disease (mean age 66 ±11), visual acuity (VA) >6/18, were recruited ...


Visual Performance, And It's Response To Intervention, In Subjects With Age-Related Macular Degeneration., Sarah Sabour-Pickett 2012 Dublin Institute of Technology

Visual Performance, And It's Response To Intervention, In Subjects With Age-Related Macular Degeneration., Sarah Sabour-Pickett

Doctoral

Abstract Objectives: 1. To explore visual performance status through a range of psychophysical methods beyond corrected distance visual acuity (CDVA), in subjects with age-related macular degeneration (AMD). 2. To investigate the effects on these visual performance parameters in subjects with neovascular age-related macular degeneration (nv-AMD) and in subjects with early AMD undergoing anti-VEGF (vascular endothelial growth factor) therapy and macular carotenoid supplementation, respectively. 3. To understand the role of a supplement containing meso-zeaxanthin (MZ; the third, and currently least explored, macular carotenoid) on the augmentation of macular pigment (MP), on visual performance and on disease progression (graded according to the ...


Certifying 3d Glasses, Bret Andre 2012 Pacific University

Certifying 3d Glasses, Bret Andre

6th Annual VPI Research Conference

At home, school, the workplace, or the cinema—presentations of 3D content are increasingly integrating into our lives. Currently, the most widely available 3D systems require eyewear for viewing the 3D content; as a result, personal 3D eyewear products have become available to consumers. Various materials have been used to make circular polarized 3D lenses. These materials are selected based on performance and cost/price-point requirements. Considering the limited knowledge of ophthalmic lens design and materials amongst the general public, selecting over-the-counter 3D eyewear with effective performance and optical qualities is potentially a difficult task. Ineffective products could result in ...


Experiences And Preferences With Prescribed 3d Glasses, Shun-nan Yang, Mijeong Kwon 2012 Pacific University

Experiences And Preferences With Prescribed 3d Glasses, Shun-Nan Yang, Mijeong Kwon

6th Annual VPI Research Conference

Stereoscopic 3D viewing can be achieved by projecting images to the two eyes with shuttering and filtered polarization. One important difference between these two methods is that shutter glasses require a flat frontal surface whereas filtered polarizing glasses do not. They each pose different challenges to spectacle wearers who require both prescribed optical correction and 3D glasses to see 3D content. To investigate the effect of prescribed 3D glasses on viewing experiences, habitual spectacle wearers were recruited from Pacific University (n=45, age range 18-40), USA, and Eulji University (n=145, age 18-60), South Korea, to test two types of ...


Considerations In Validating A 3d Screening Program, John R. Hayes 2012 Pacific University

Considerations In Validating A 3d Screening Program, John R. Hayes

6th Annual VPI Research Conference

This was a brief discussion on some basics in determining the effectiveness of a screening program. We discussed the definition of “truth” or the reference, the importance of a representative sample, and the meaning of the statistical measures of success. Specifically we discussed the importance of positive (PPV) and negative (NPV) predictive value rather than sensitivity and specificity in describing results. PPV is the probability of a person actually having a problem if the screening test is positive which is of primary interest to the clinician. Sensitivity is the measurement from the context of already knowing a person has a ...


Using S3d As A Vision Screening Tool, Yu-Chi Tai 2012 Pacific University

Using S3d As A Vision Screening Tool, Yu-Chi Tai

6th Annual VPI Research Conference

No abstract provided.


What Do We Know About The Effects Of S3d On Learning?, Len Scrogan 2012 Pacific University

What Do We Know About The Effects Of S3d On Learning?, Len Scrogan

6th Annual VPI Research Conference

In this session, Len Scrogan, an adjunct professor with the University of Colorado-Denver and past Director of Instructional Technology with the Boulder Valley School District, presented on three themes related to S3D in educational settings:

Content

Len demonstrated three types of S3D software currently used in schools: learning objects, video and animation shorts, and simple interactives (micro-simulations). He showed a taxonomy of six different types of S3D content for the education market and provided a list of currently available 3D educational content providers, citing a 350% growth in companies offering 3D educational content over the previous two and a half ...


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