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Dissertations / Theses on the topic 'Cataract'

Author: Grafiati

Published: 4 June 2021

Last updated: 25 July 2025

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1

Plummer, Robert. "Livingstone's cataract." Master's thesis, University of Cape Town, 2011. http://hdl.handle.net/11427/12236.

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Includes abstract.<br>In January 1860, the painter Thomas Baines returned to Cape Town in disgrace, having been dismissed from David Livingstone's expedition to explore the Kebrabasa rapids on the Zambesi River. Livingstone's Cataract is a historical novel that follows Baines's involvement with the expedition. It is written from Baines's point of view, in the first person...

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2

Ndlovu, Keeleditse. "Perceptions of cataracts and cataract services of elderly persons in Mathangwane, Botswana." Master's thesis, University of Cape Town, 2008. http://hdl.handle.net/11427/26621.

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Background: Cataract is the leading cause of blindness globally. In Botswana about 60% of blindness is due to cataract. Health services in Botswana are free, as are cataract services. Despite the free health services offered, the Batswana do not fully utilize the available eye care services especially the cataract services. Many Batswana access health care in public hospitals, where patients may have to wait for long periods for clinic appointments and surgery. Research question: What are the perceptions that elderly persons in Mathangwane village in Botswana, have of cataracts and cataracts s

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3

Hanna, Keith James. "Monitoring cataract change." Thesis, University of Oxford, 1990. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.302892.

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4

Zanetti, Fernando Roberte 1983. "Efeito dos antiinflamatórios tópicos acetato de prednisolona 1%, nepafenaco 0.1% e cetorolaco de trometamina 0.4% na manutenção da midríase intra-operatória em facectomias = estudo clínico aleatorizado." [s.n.], 2011. http://repositorio.unicamp.br/jspui/handle/REPOSIP/311825.

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Orientadores: Rodrigo Pessoa Cavalcanti Lira, Carlos Eduardo Leite Arieta<br>Dissertação (mestrado) - Universidade Estadual de Campinas, Faculdade de Ciências Médicas<br>Made available in DSpace on 2018-08-19T07:57:39Z (GMT). No. of bitstreams: 1 Zanetti_FernandoRoberte_M.pdf: 5269678 bytes, checksum: 52bd5ded5d0f8194a3568da0d6fc7488 (MD5) Previous issue date: 2011<br>Resumo: Introdução: Os Antiinflamatórios tópicos são utilizados comumente no tratamento da inflamação ocular e do edema macular cistóide relacionado a cirurgia de catarata. Tem sido sugerido o uso de antiinflamatórios antes da

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5

Crabtree, Helen Louise. "The Sunderland cataract study." Thesis, University of Newcastle upon Tyne, 2005. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.430694.

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6

Enfield, David. "History of Cataract Extraction." The University of Arizona, 2018. http://hdl.handle.net/10150/626670.

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7

Löfgren, Stefan. "Cataract from ultraviolet radiation /." Stockholm : Karolinska Univ. Press, 2001. http://diss.kib.ki.se/2001/91-7349-065-2/.

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8

Laidlaw, David Alistair Hunter. "Second eye cataract surgery." Thesis, University of Bristol, 1997. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.322548.

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9

Kovalev, A., S. Vavryn, G. Gley, et al. "VITAMIN E AND CATARACT." Thesis, Мегапринт, 2013. http://er.nau.edu.ua/handle/NAU/10099.

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10

Iida, Fumito. "Rupture of lens cataract : a novel hereditary recessive cataract model in the mouse." Kyoto University, 1997. http://hdl.handle.net/2433/202228.

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11

Figueirêdo, Eugênio Santana de 1981. "Estudo de alterações estruturais nos genes CRYAA, CRYGC e CRYGD em pacientes com catarata congênita de uma população brasileira." [s.n.], 2013. http://repositorio.unicamp.br/jspui/handle/REPOSIP/308541.

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Orientadores: Carlos Eduardo Leite Arieta, Mônica Barbosa de Melo<br>Tese (doutorado) - Universidade Estadual de Campinas, Faculdade de Ciências Médicas<br>Made available in DSpace on 2018-08-23T06:48:19Z (GMT). No. of bitstreams: 1 Figueiredo_EugenioSantanade_D.pdf: 3323342 bytes, checksum: 042b6873e6f41d4d3c640662d8944a96 (MD5) Previous issue date: 2013<br>Resumo: A catarata congênita é a principal causa de cegueira reversível na infância, com prevalência de um a cinco casos por 10.000 nascidos vivos. A forma hereditária corresponde a 50% desses casos, sendo a forma de transmissão autossôm

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12

Simpson, Gregory L. W. "A mechanism for ascorbate induced cataract in human lens." free to MU campus, to others for purchase, 2001. http://wwwlib.umi.com/cr/mo/fullcit?p3036856.

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13

Huffman, Ryan Issac. "Cataract Formation After Retinal Procedures." Yale University, 2007. http://ymtdl.med.yale.edu/theses/available/etd-06282006-095623/.

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The purpose of this project is to study the risk of cataract development in patients who had undergone pars plana vitrectomy, scleral buckle, or both. A retrospective study was performed of phakic patients who underwent pars plana vitrectomy, scleral buckle, or both at Yale University Eye Center from 1998 to 2005. Mild postoperative cataract, defined as a change in severity of 1+, developed in 32 of 53 (60%) eyes following vitrectomy, 2 of 19 (11%) post scleral buckle, and 14 of 16 (88%) after both. Moderate postoperative cataract, defined as a change in severity of 2+, developed in 14 of 53 (

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14

Muir, Matthew Stewart. "Proteomics of the ovine cataract." Diss., Lincoln University, 2008. http://hdl.handle.net/10182/792.

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The lens of the eye needs to be completely transparent in order to allow all light entering the eye to reach the retina. This transparency is maintained by the highly ordered structure of the lens proteins the crystallins. Any disruption to the lens proteins can cause an opacity to develop which is known as cataract. During cortical cataract formation there is increased truncation of the lens crystallins. It is believed that overactivation of calcium-dependent cysteine proteases, the calpains, is responsible for the increased proteolysis of the crystallins seen during cataractogenesis. Within

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15

Blakytny, Robert. "Experimental cataract and its prevention." Thesis, University of Oxford, 1993. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.333181.

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16

Riley, M. Louise. "Alcohol, aldehydes, ageing and cataract." Thesis, University of Oxford, 1995. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.260233.

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17

Jiang, Zhirong, and 蔣志戎. "Cataract induced by osmotic stress." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2000. http://hub.hku.hk/bib/B31241876.

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18

Ndaule, Eric. "Cataract surgical services in Madagascar." Master's thesis, University of Cape Town, 2018. http://hdl.handle.net/11427/29835.

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Objective: The main purpose of this study was to evaluate cataract surgical services in Madagascar to help guide the national eye health program. Methods: A retrospective study that used cataract surgical data collected between January 1st and December 31st, 2012 in 8 regional capitals (districts) of Madagascar. 1072 cataract operated eyes from 8 regional capitals supported by Kilimanjaro Centre for Community Ophthalmology (KCCO) satellite centers were analysed. Results: The study findings demonstrated a borderline post-operative visual acuity outcome after 24 hours but showed visual improveme

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19

Giesecke, Tonia. "Ultrasonic capsulotomy in cataract surgery." Master's thesis, University of Cape Town, 1998. http://hdl.handle.net/11427/17541.

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Bibliography: pages 65-69.<br>The human lens has two functions to fulfil. It has to transmit light and it has to change its shape according to the requirements of the accommodative process. These functions are determined respectively by the optical and mechanical properties of the lens. It is well documented that cataracts contribute to the gradual changes of the lens matrix properties. The fact is that loss of transparency due to cataract is a universal phenomenon occurring in 70% of the population over 70 years of age and that the only effective treatment for cataracts is its operative remov

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20

Olofsson, Eva. "Superoxide dismutase 1 and cataract." Doctoral thesis, Umeå : Umeå universitet, 2009. http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-21032.

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21

Jiang, Zhirong. "Cataract induced by osmotic stress /." Hong Kong : University of Hong Kong, 2000. http://sunzi.lib.hku.hk/hkuto/record.jsp?B23339603.

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22

Painter, Geoffrey Thomas. "Corneal Protection in Cataract Surgery." Thesis, The University of Sydney, 2019. https://hdl.handle.net/2123/21214.

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Protection of the corneal endothelium is one of the most important aspects of cataract surgery. This thesis describes two studies that examine new products and techniques to protect the cornea in cataract surgery. The first study examines the corneal protective effect of a new viscoelastic, DisCoVisc, compared to two established products in a randomised control trial of 180 patients. While no objective difference in corneal protection could be found between DisCoVisc and the other two viscoelastics, DisCoVisc compared more favourably in subjective surgical behaviour when compared to Healon alt

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23

Painter, Geoffrey Thomas. "Corneal Protection in Cataract Surgery." Thesis, The University of Sydney, 2019. https://hdl.handle.net/2123/21389.

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Protection of the corneal endothelium is one of the most important aspects of cataract surgery. This thesis describes two studies that examine new products and techniques to protect the cornea in cataract surgery. The first study examines the corneal protective effect of a new viscoelastic, DisCoVisc, compared to two established products in a randomised control trial of 180 patients. While no objective difference in corneal protection could be found between DisCoVisc and the other two viscoelastics, DisCoVisc compared more favourably in subjective surgical behaviour when compared to Healon alt

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24

Dell, Kevin David. "Antioxidant Intervention With manganese(Iii)-Salophen in the Selenite Cataract Model: Implications for Cataract Disease." Diss., Virginia Tech, 1998. http://hdl.handle.net/10919/40498.

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Cataract disease affects millions of people worldwide. It is characterized by the accumulation of light-scattering bodies within the lens that reduce visual acuity. Cataracts are effectively treated surgically, but at great expense, costing Medicare $3.4 billion in 1997. Development of an alternative therapy for this disease would provide medical and economic benefits. We have investigated a novel antioxidant, the superoxide scavenger Mn(III)-salophen, as a therapeutic agent in the selenite cataract model. Mn(III)-salophen has been shown to protect E. coli colonies against oxidative stress but

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25

Lundvall, Anna. "Outcome after surgery of congenital cataract /." Stockholm, 2002. http://diss.kib.ki.se/2002/91-7349-197-7/.

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26

Zhu, Huan. "An investigation of a mechanism on cataract formation and the study of IGF effect on lens epithelial cells." Diss., Georgia Institute of Technology, 1992. http://hdl.handle.net/1853/26307.

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27

Petchey, M. "Lens carbohydrate metabolism and cataract chemotherapy." Thesis, University of Oxford, 1985. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.371562.

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28

Dowler, George Frank. "Cataract surgery in patients with diabetes." Thesis, University College London (University of London), 1999. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.395831.

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29

Wang, Zaiqi. "Lens calcium homeostasis and selenite cataract." Diss., This resource online, 1992. http://scholar.lib.vt.edu/theses/available/etd-05042006-164509/.

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30

Al, Hajj Hassan. "Video analysis for augmented cataract surgery." Thesis, Brest, 2018. http://www.theses.fr/2018BRES0041/document.

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L’ère numérique change de plus en plus le monde en raison de la quantité de données récoltées chaque jour. Le domaine médical est fortement affecté par cette explosion, car l’exploitation de ces données est un véritable atout pour l’aide à la pratique médicale. Dans cette thèse, nous proposons d’utiliser les vidéos chirurgicales dans le but de créer un système de chirurgie assistée par ordinateur. Nous nous intéressons principalement à reconnaître les gestes chirurgicaux à chaque instant afin de fournir aux chirurgiens des recommandations et des informations pertinentes. Pour ce faire, l’objec

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31

Chiurciu, João Leandro Vera [UNESP]. "Análise comparativa de dois viscoelásticos dispersivos na facoemulsificação em cães portadores de catarata." Universidade Estadual Paulista (UNESP), 2008. http://hdl.handle.net/11449/101183.

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Made available in DSpace on 2014-06-11T19:31:09Z (GMT). No. of bitstreams: 0 Previous issue date: 2008-02-29Bitstream added on 2014-06-13T19:25:57Z : No. of bitstreams: 1 chiurciu_jlv_dr_botfmvz.pdf: 349241 bytes, checksum: bd5d442bec2c4a00b188c9600c29d72f (MD5)<br>Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)<br>Com o trabalho, teve-se por objetivo analisar individual e comparativamente o desempenho de dois viscoelásticos, hialuronato de sódio 3% associado ao sulfato de condroitina 4% e hidroxipropilmetilcelulose 2%, frente à facoemulsificação em cães portadores de catarata

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32

Eyherabide, Ana Rodrigues. "Padronização do eletrorretinograma de campo total em cães da raça Yorkshire Terrier." Universidade de São Paulo, 2016. http://www.teses.usp.br/teses/disponiveis/10/10137/tde-03102016-100114/.

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O eletrorretinograma de campo total consiste no registro da resposta elétrica difusa gerada pelas células da retina, e é considerado, nos cães, um exame essencial, principalmente nos casos de encaminhamento de cirurgia de catarata e em doenças que afetam a função retiniana. Todavia, diversos fatores podem influenciar nos valores de amplitude e tempo de culminação das respostas obtidas no exame, como idade do animal, raça, presença de catarata e seu estágio de desenvolvimento e uso da anestesia ou sedação. O objetivo desse estudo foi avaliar a interferência da idade e do estágio de desenvolvime

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33

Gordo, Inês Neto Afonso de Serrano. "Complicações da cirurgia de cataratas por facoemulsificação em cães." Master's thesis, Universidade Técnica de Lisboa. Faculdade de Medicina Veterinária, 2012. http://hdl.handle.net/10400.5/4936.

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Dissertação de Mestrado Integrado em Medicina Veterinária<br>As cataratas são um dos diagnósticos mais frequentes em oftalmologia veterinária, constituindo a principal causa de cegueira em canídeos. A abordagem cirúrgica é a única resolução eficaz, sendo a facoemulsificação a técnica de eleição. O presente estudo teve por objectivo a análise das possíveis complicações decorrentes da correcção cirúrgica de cataratas em canídeos pela técnica de facoemulsificação bimanual (coaxial). A amostra compreendeu 21 bulbos oculares de 13 cães submetidos a cirurgia de facoemulsificação no Hospital Escola

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34

Bartling, Karsten. "Apoferritin Crystallization in relation to Eye Cataract." Diss., Georgia Institute of Technology, 2006. http://hdl.handle.net/1853/14111.

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Protein crystallization is significant in both biotechnology and biomedical applications. In biotechnology, crystallization is essential for determining the structure of both native and synthesized therapeutically important proteins. It can also be used as a final purification step and as a stable form for protein storage. With regard to biomedical systems, protein crystallization appears to be involved in the development and manifestation of certain human diseases. In particular, there exists evidence that L-rich ferritin crystals are involved in Hereditary Hyperferritinemia Cataract Synd

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35

Meyer, Linda Maren. "Cataract from ultraviolet radiation in the mouse /." Stockholm, 2005. http://diss.kib.ki.se/2005/91-7140-583-6/.

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36

Kugelberg, Maria. "Prevention of complications in pediatric cataract surgery /." Stockholm, 2004. http://diss.kib.ki.se/2004/91-7140-111-3/.

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37

Qian, Wen. "Quantitative cataract measurement with the Scheimpflug technique /." Stockholm, 1999. http://diss.kib.ki.se/1999/91-628-3930-6/.

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38

Kronschläger, Martin. "Prevention of Experimental Cataract Induced by UVR." Doctoral thesis, Uppsala universitet, Oftalmiatrik, 2014. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-232955.

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Cataract is the leading cause of blindness in the world and is defined by opacification of the normally transparent lens of the eye. The major avoidable cause of cataract is ultraviolet radiation (UVR), but no current strategies have been developed to prevent the onset of cataract. Apoptosis and internal and external antioxidant systems that inhibit apoptosis have been shown to play a significant role in cataractogenesis. The main purposes of this thesis were to study the time evolution of apoptosis, to develop the concept of a protection factor (PF), and to investigate the effect of thioltran

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39

Cornish, Kelly Marie. "Dietary flavonoid quercetin in relation to cataract." Thesis, University of East Anglia, 2002. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.247104.

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40

Elliott, D. B. "Methods of assessing the progress of cataract." Thesis, University of Bradford, 1988. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.381029.

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41

Durant, Jennifer Susan. "Risk factors for cataract : retrodots and waterclefts." Thesis, University of Bristol, 2000. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.324368.

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42

Smith, Martin R. "Cataract, macular characteristics and assessing lens opacities." Thesis, Aston University, 2014. http://publications.aston.ac.uk/22482/.

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Age-related macular degeneration and cataract are very common causes of visual impairment in the elderly. Macular pigment optical density is known to be a factor affecting the risk of developing age-related macular degeneration but its behaviour due to light exposure to the retina and the effect of macular physiology on this measurement are not fully understood. Cataract is difficult to grade in a way which reflects accurately the visual status of the patient. A new technology, optical coherence tomography, which allows a cross sectional slice of the crystalline lens to be imaged has the poten

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43

Fachinelli, Rodolfo de Lima. "Estimativa da ceratometria média a partir dos dados biométricos e refração pós-operatórios de olhos de crianças submetidas à facectomia por catarata congênita e do desenvolvimento." Universidade Estadual Paulista (UNESP), 2018. http://hdl.handle.net/11449/153418.

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Chen, Hongyuan. "Design, synthesis and testing of calpain inhibitors for the treatment of cataract." Thesis, University of Canterbury. Chemistry, 2007. http://hdl.handle.net/10092/1405.

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This thesis reports the development of potent and selective inhibitors of m-calpain for the treatment of cataract. SJA6017 has been proven to prevent lens opacity in rat and has been our lead compound. A series of Val-Leu peptidyl aldehyde inhibitors (33a-e, 33g, 33i and 35) have been designed, synthesized, and tested for therapeutic potential as cataract inhibitors. Chapter 1 is an introduction to calpain and the diseases associated with it's over activation. A review of the literature on calpain inhibition is given. Structure activity relationship (SAR) theory is presented. The techni

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45

Magwebu, Zandisiwe Emilia Z. E. "Molecular genetics: strategies to identify congenital cataract genes in captive-bred vervet monkeys." University of the Western Cape, 2013. http://hdl.handle.net/11394/4265.

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>Magister Scientiae - MSc<br>Molecular genetics: strategies to indentify congenital cataract genes in captive-bred Vervet monkeys Zandisiwe Emilia Magwebu MSc thesis, Department of Medical Biosciences, University of the Western Cape The present study describes molecular aspects of inherited congenital cataract in captive-bred Vervet monkeys. Congenital cataracts are lens opacities that are present at birth or soon after birth and include hereditary cataracts or cataracts caused by infectious agents. The MRC Primate Unit is housing a colony of captive-bred Vervet monkeys in which 7.5% is

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Magwebu, Zandisiwe Emilia. "Molecular genetics: strategies to identify congenital cataract genes in captive-bred Vervet monkeys." Thesis, University of the Western Cape, 2012. http://hdl.handle.net/11394/4402.

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Magister Scientiae (Medical Bioscience) - MSc(MBS)<br>The present study describes molecular aspects of inherited congenital cataract in captive-bred Vervet monkeys. Congenital cataracts are lens opacities that are present at birth or soon after birth and include hereditary cataracts or cataracts caused by infectious agents. The MRC Primate Unit is housing a colony of captive-bred Vervet monkeys in which 7.5% is suffering from congenital cataract. However, the parents of the affected individuals were asymptomatic. Six families within the colony have been identified to be affected by two types o

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47

Martins, Cristiane Maria Gomes. "Impacto da catarata congênita na sensibilidade ao contraste espacial de luminância em crianças." Universidade de São Paulo, 2012. http://www.teses.usp.br/teses/disponiveis/47/47135/tde-15032013-105656/.

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A opacificação do cristalino presente ao nascimento ou nos primeiros meses de vida é denominada de Catarata Congênita (CC). As primeiras semanas de vida são importantes no desenvolvimento visual, já que há diferença significativa no desempenho visual de crianças que passaram pela cirurgia até seis semanas de vida (com melhor desempenho visual) em relação às crianças que realizaram a cirurgia após seis semanas de vida. Crianças que tiveram privação visual durante a primeira infância por catarata bilateral apresentam redução da visão espacial. O objetivo deste trabalho foi verificar o impacto na

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48

Prado, Rodrigo Bueno do. "Estudo prospectivo do desenvolvimento biométrico de olhos com catarata congênita e do desenvolvimento /." Botucatu, 2014. http://hdl.handle.net/11449/113881.

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Orientador: Antônio Carlos Lottelli Rodrigues<br>Banca: Carlos Roberto Padovani<br>Banca: André Messias<br>Resumo: OBJETIVO. Avaliar o comprimento axial (AL), profundidade da câmara anterior (ACD) e espessura do cristalino (LT) de olhos de crianças a termo com catarata congênita e do desenvolvimento não complicada e fornecer estimativas específicas por idade. MÉTODO. Estudo retrospectivo de crianças submetidas à facectomia entre junho de 2011 e janeiro de 2014. Foram incluídas crianças com catarata não complicada sem patologias oculares e idade inferior a dez anos. Dados biométricos foram obti

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49

Rosha, Deepinder Singh. "Chemoprophylaxis for the prevention of endophthalmitis after cataract surgery: patterns of use and economic costs." Thesis, Curtin University, 2006. http://hdl.handle.net/20.500.11937/2135.

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Objectives: The objectives of study were to (i) examine the regional differences in methods of performing cataract surgery across different jurisdictions in Australia and New Zealand (ii) identify risk factors for post-operative endophthalmitis and (iii) explore the implication of changes in surgical practice on the number of cases of post-operative endophthalmitis and resultant net cost to health system. Methods: Cataract surgeons across Australia and New Zealand were surveyed about their demographics, surgical techniques, use of pre- and post-operative antibiotics and antiseptics and cases o

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50

Hamam, Abdelwahab. "A three-dimensional haptic cataract tele-surgery simulation." Thesis, University of Ottawa (Canada), 2007. http://hdl.handle.net/10393/27519.

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Medical simulations are becoming more advanced and more reliable in training medical students and new surgeons. Especially in the context of delicate surgeries, such as cataract surgery, the medical community is shifting from traditional medical training to sophisticated virtual reality simulations. In this thesis, we present a simulation built in a three-dimensional environment that aids in training medical residents to perform cataract surgeries. The application utilizes haptic devices as a means of interaction, which enriches the application by providing a sense of touch and force-feedback

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