• Refine Query
  • Source
  • Publication year
  • to
  • Language
  • 58
  • 7
  • 7
  • 6
  • 2
  • 2
  • 2
  • 1
  • 1
  • 1
  • 1
  • 1
  • 1
  • Tagged with
  • 103
  • 103
  • 27
  • 17
  • 14
  • 14
  • 13
  • 12
  • 11
  • 10
  • 9
  • 9
  • 9
  • 8
  • 8
  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
21

Optimization of a technique for phosphorescence lifetime imaging of oxygen tension in the mouse retina

Kight, Amanda C. January 2002 (has links)
Thesis (M.S.)--Worcester Polytechnic Institute. / Keywords: imaging; phosphorescence; eye; retina. Includes bibliographical references (p. 50-55).
22

The functional roles of retinal homeobox genes in zebrafish retinal development and an introduction to silica nanomaterial toxicity in zebrafish embryos /

Nelson, Steve M. January 1900 (has links)
Thesis (Ph. D., Neuroscience)--University of Idaho, October 2009. / Major professor: Deborah L. Stenkamp. Includes bibliographical references. Also available online (PDF file) by subscription or by purchasing the individual file.
23

A self-management programme for older adults with age-related macular degeneration (AMD)

Young, Ping., 葉萍. January 2012 (has links)
Age-related macular degeneration (AMD) causes vision impairment which is not recoverable under existing treatment options. It has been a major leading cause of blindness in the aged population. To ameliorate the self-care ability for AMD patients, educational interventions to mediate negative impacts of the disease on quality of life have become a research interest. Current practice in the proposed Hong Kong setting, Elderly Health Centre A and Elderly Health Centre B, depends on nurses giving general advice which is lack of scientific support and non-specific to AMD. Purpose of this dissertation is to translate the best evidence to practice for improving the care of older adults with AMD in the proposed setting. Evidences showed that self-management education programmes were effective in improving emotional distress and self-efficacy. Electronic searches located 9 relevant RCTs of high level and methodologically strong evidences. Data was extracted into tables of evidence. Data summary and synthesis was presented. Assessment on the implementation potential indicated that the SEP was worth to try in the local setting. Twelve recommendations for the practice guidelines of SEP were presented and a communication process to facilitate the change in a top-down approach was introduced. A pilot study plan in Centre A followed by a main study in Centre A and Centre B was presented. A total of 98 elderly patients with AMD will be recruited as 10 SEP groups. Approximately 1.8 years will be used to finish the main study. Outcomes will be measured at the 6th week follow-up. ‘Emotional distress’ will be measured as primary outcome and ‘self-efficacy’ will be measured as secondary outcome. ‘Client satisfaction’, ‘staff satisfaction’ and the ‘utilization rate of the innovation’ will also be assessed in evaluation. A two-tailed paired (one-sample) t-test will be adopted for analysis, with a 95% confidence interval. The basis for effectiveness for the outcome measurements and basis for adoption of the clinical guidelines were stated. Adoption of the developed guidelines in the local setting will optimistically improve the substantial clinical outcomes for AMD patients, mediating the negative impacts of vision impairment or vision loss on their quality of life. / published_or_final_version / Nursing Studies / Master / Master of Nursing
24

Gyrate atrophy of the choroid and retina associated with hyperornithinaemia

Takki, Kirsti. January 1975 (has links)
Thesis--University of Helsinki, 1975. / Bibliography, p. 37-43.
25

The role of lutein and zeaxanthin in protecting the retina from light damage /

Derenick, Rhianna A. January 2007 (has links)
Thesis (M.S.)--Oregon State University, 2007. / Printout. Includes bibliographical references (leaves 54-60). Also available on the World Wide Web.
26

Plasticity and macular degeneration the reorganization of adult cortical topography /

Main, Keith L. January 2007 (has links)
Thesis (M. S.)--Psychology, Georgia Institute of Technology, 2007. / Schumacher, Eric, Committee Chair ; Corballis, Paul, Committee Member ; Jacko, Julie, Committee Member.
27

Demographic, medical and visual aspects of diabetic retinopathy and diabetic macular edema

Sukha, Anusha Yasvantrai 03 April 2014 (has links)
M.Phil. (Optometry) / Despite many years of research, diabetic retinopathy (DR), and diabetic macular edema (DME) remain difficult to diagnose, prevent, and treat. The complicated nature of the disease, the limited information on DR and DME and the increasing prevalence of diabetes mellitus (DM) in South Africa, provided motivation for this study. To the best of my knowledge, this is the first study in our country to identify demographic, medical and visual aspects ofDR and DME collectively. A further incentive was the availability in optometry of recently developed computer software based upon multivariate statistics, which provided a unique opportunity to analyze, for example, tri-variate contrast sensitivity acuities using stereo-pair scatter plots. All refractive status measurements were also analyzed and compared with the same method. Together, the results from this study provide a broader clinical and research perceptive on DR and DME. In this cross-sectional study, 202 diabetic patients at the Helen Joseph Hospital in Johannesburg were recruited. Demographic variables included age, gender, race, age of diagnosis, duration of DM, and social habits. Medical variables included systemic conditions present, blood pressures, body mass index (BMI), lipid profiles, glycerated haemoglobin (HbAlc), and other available biochemical data (for example cholesterol, urea and creatinine levels). Visual variables included, distance, pinhole and near visual acuities, contrast sensitivity acuities, refractive status measured with autorefraction, colour vision, Amsler grid, intraocular pressures (lOP), and fundus photography. Administration of the Impact of Visuallmpainnent (IVI) questionnaire provided new information concerning the restrictions in daily living participation caused by DR or DME. The predominant characteristics of the study population consisted of Type 1DM among female Coloured subjects. Approximately 66% of all subjects had also been diagnosed with hypertension. The mean age ofthe subjects was 52 (± 14) years, age of diagnosis 41 (± 13) years, and duration ofDM 10.8 (± 9.7) years. Mean blood pressures (136/81 ± 20.5/11 mmHg) and glycated haemoglobin (HbAlc, 9.9 ± 3.4%) values were slightly higher than the recommended control levels (BP= 120/80 mmHg and HbAlc = 6 to 7%).
28

Pathogenetic mechanisms of the retinal degeneration: neuronal degeneration in retinitis pigmentosa. / CUHK electronic theses & dissertations collection

January 1999 (has links)
by Zhang Chun. / Thesis (Ph.D.)--Chinese University of Hong Kong, 1999. / Includes bibliographical references (p. 154-197). / Electronic reproduction. Hong Kong : Chinese University of Hong Kong, [2012] System requirements: Adobe Acrobat Reader. Available via World Wide Web. / Mode of access: World Wide Web. / Abstract in Chinese and English.
29

Genetic investigation of age-related macular degeneration and polypoidal choroidal vasculopathy. / CUHK electronic theses & dissertations collection

January 2013 (has links)
Liu, Ke. / Thesis (Ph.D.)--Chinese University of Hong Kong, 2013. / Includes bibliographical references (leaves 175-198). / Electronic reproduction. Hong Kong : Chinese University of Hong Kong, [2012] System requirements: Adobe Acrobat Reader. Available via World Wide Web. / Abstract also in Chinese.
30

Exploration of the molecular genetics of exudative age-related macular degeneration.

January 2007 (has links)
Tam, Oi Sin Pancy. / Thesis (M.Phil.)--Chinese University of Hong Kong, 2007. / Includes bibliographical references (leaves 101-128). / Abstracts in English and Chinese. / Table of Contents / Title page --- p.i / Abstract --- p.iii / 摘要 --- p.vi / Acknowledgements --- p.viii / Table of Contents --- p.ix / List of Figures --- p.xiii / List of Tables --- p.xv / Abbreviations --- p.xvii / Publications related to the work of this thesis --- p.xx / Conference Presentations related to this thesis --- p.xxi / Chapter Chapter 1 --- Introduction / Chapter 1.1 --- AMD --- p.1 / Chapter 1.2 --- Epidemiology --- p.4 / Chapter 1.3 --- Classification --- p.5 / Chapter 1.3.1 --- Dry AMD --- p.6 / Chapter 1.3.2 --- Wet/Exudative AMD --- p.9 / Chapter 1.4 --- Etiology and risk factors of AMD --- p.10 / Chapter 1.4.1 --- Gender and Ethnicity --- p.10 / Chapter 1.4.2 --- Smoking and vascular factors --- p.11 / Chapter 1.4.3 --- Genetic Factor --- p.11 / Chapter 1.5 --- Molecular Genetics of AMD --- p.12 / Chapter 1.5.1 --- Linkage studies --- p.12 / Chapter 1.5.2 --- Candidate genes search --- p.15 / Chapter 1.5.3 --- Genome-Wide Association --- p.18 / Chapter 1.5.3.1 --- Complement Factor H --- p.20 / Chapter 1.5.3.2 --- LOC387715 --- p.22 / Chapter 1.6 --- Statistical Analysis --- p.23 / Chapter 1.6.1 --- Genotyping --- p.23 / Chapter 1.6.2 --- Quality Assessment of Genetic Data --- p.24 / Chapter 1.6.3 --- Association Analysis --- p.26 / Chapter 1.6.4 --- Population Stratification --- p.26 / Chapter 1.6.5 --- Haplotype Analysis of Multiple SNPs --- p.26 / Chapter 1.6.6 --- Population Attributable Risk --- p.27 / Chapter 1.6.7 --- Interaction analysis --- p.28 / Chapter 1.7 --- Objectives --- p.28 / Chapter Chapter 2 --- Materials and Method --- p.30 / Chapter 2.1. --- Materials --- p.30 / Chapter 2.1.1. --- Proteins --- p.30 / Chapter 2.1.2. --- Chemicals --- p.30 / Chapter 2.1.3. --- Solutions and Buffers --- p.31 / Chapter 2.1.4. --- Reagents and Kits --- p.31 / Chapter 2.1.5. --- Apparatus --- p.32 / Chapter 2.1.6. --- Softwares --- p.32 / Chapter 2.2. --- Methods --- p.32 / Chapter 2.2.1. --- Study Subjects --- p.33 / Chapter 2.2.2. --- AMD atients --- p.33 / Chapter 2.2.3. --- Control Subjects --- p.34 / Chapter 2.2.4. --- DNA Extraction and Quantification --- p.34 / Chapter 2.2.5. --- Whole genome wide SNP scanning --- p.34 / Chapter 2.2.6. --- HTRA1 Genotyping --- p.38 / Chapter 2.2.6.1. --- Serial Polymerase Chain Reactions --- p.38 / Chapter 2.2.6.2. --- Cycle sequencing --- p.40 / Chapter 2.3. --- Statistical analysis --- p.40 / Chapter 2.3.1. --- Hardy-Weinberg Equilibrium Test --- p.40 / Chapter 2.3.2. --- Association Analysis: Linkage disequilibrium --- p.42 / Chapter 2.3.3. --- Haplotype Analysis --- p.43 / Chapter 2.3.4. --- Interaction Analysis --- p.43 / Chapter Chapter 3 --- Results --- p.46 / Chapter 3.1. --- Genome-wide Association Study of Exudative AMD --- p.46 / Chapter 3.1.1. --- Genotyping and Association Analysis --- p.46 / Chapter 3.1.2. --- Haplotype Analysis --- p.50 / Chapter 3.2. --- HTRA1 Genotyping --- p.57 / Chapter 3.2.1. --- Association Analysis --- p.57 / Chapter 3.2.2. --- Haplotype Analysis --- p.68 / Chapter 3.2.3. --- rsl 1200638 - Smoking Interaction --- p.68 / Chapter 3.2.4. --- rsl 1200638 - rs800292 Interaction --- p.74 / Chapter Chapter 4 --- Discussion --- p.79 / Chapter 4.1. --- Genome-wide Association Study of Exudative AMD --- p.79 / Chapter 4.1.1. --- Limitations and Concerns of Genome-Wide Association Study --- p.84 / Chapter 4.2. --- HTRA1 Genotyping --- p.85 / Chapter 4.2.1 --- Association and Haplotype Analysis --- p.85 / Chapter 4.2.2. --- HTRA1 --- p.87 / Chapter 4.2.3. --- Gene-Environment Interaction --- p.93 / Chapter 4.2.4. --- Gene-Gene Ineraction --- p.94 / Conclusions and Future Aspects --- p.97 / Electronic-Database Information --- p.100 / References --- p.101

Page generated in 0.1323 seconds