4 resultados para prosthetics

em Aston University Research Archive


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This paper reflects on a longitudinal collaborative action research programme between the Centre for Research in Strategic Purchasing and Supply and the UK National Health Service Purchasing and Supply Agency that has operated since 1995. During the collaboration, research has changed practice and practice has changed research. A framework for analysing change is introduced as a means of examining how supply strategy has changed during the course of the research. The framework is applied to three supply strategy cases of prosthetics, clinical waste and cardiology, illustrating how practice and research have changed and influenced the production of knowledge over time. The methodological, theoretical and managerial implications of such longitudinal action research programmes are reflected on.

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This paper relates the concept of network learning - learning by a group of organizations as a group - to change and notions of change management. Derived initially from a review of literature on organizational learning (OL) and interorganizational networks, and secondary cases of network learning, the concept was evaluated and developed through empirical investigation of five network learning episodes in the group of organizations that comprises the English prosthetics service. We argue that the notion of network learning enables a richer understanding of developments in networks over extended periods of time than can be afforded through more established concepts of change and change management alone.

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This time of year we look back at the year that has passed and make plans for the next year. I like to reflect on things that I have learnt and people that I have met, especially those who facilitated that learning. In 2009 I went to various conferences, The BCLA conference in Manchester, The Romanian Optical Society meeting in Brasov, Transylvania (where the university is actually on Vlad Tepes Street), The European Council for Optometry and Optics (ECOO) in Brno, Czech Republic, The American Academy of Optometry (AAO) in Orlando USA, The International Association of Contact Lens Educators (IACLE) meeting in Tianjin China and finally The Vereinigung Deutscher Contactlinsen-Spezialisten (VDCO) meeting in Jena. All were interesting places and thoroughly all were enjoyable conferences with their own highlights but I wanted to focus on Jena and one person I met there and his inspirational search for knowledge and the contributions he made in the field of contact lenses. Jena itself is a fascinating place and should be on the ‘must visit’ list of anyone involved in eye care. It is the birth place of Carl Zeiss of course and where he started his company. It is also the birth place of Ernst Abbe (physicist and optometrist and expert lens maker), and Otto Schott (chemist and technologist who made high quality glass. There are many road signs bearing witness to these famous pioneers. The optical museum is worth spending a few hours looking around too. I was invited to speak at the VDCO at the kind invitation from colleagues at the Jena School of Optometry, Professor Wolfgang Sickenberger and Professor Sebastian Marx. At this meeting I met 87-year-old Willi KAUE who was being awarded the Adolf Wilhelm Müller-Welt prize by the VDCO for contribution to contact lenses over his 60-year career. At the age of 15 Willi Kaue took up an apprenticeship to become an Optician in Germany in 1937. At this time he first heard about the scleral glass lenses made by the Carl Zeiss Company in Jena. This started his lifelong fascination which was to become his passion but not yet his career. During the war he was enlisted into military service but immediately after was back to his former career. In 1950 Willi corrected his own 3.5 dioptres of myopia with a plastic scleral lens. His fascination strengthened as for the first time he himself could experience a wider field of view than his spectacles gave him, less aberrations and less retinal minification. He also appreciated the fact that contact lenses did not cause pressure on the nose or ears and did not slide down his nose plus remained optically centred with his eye movements. He decided that form now on he would make fitting contact lenses his career. He travelled to London to learn more about contact lenses and how to fit them but initially did not find many willing teachers and to start with became largely self-taught. He wanted to know how to make scleral lenses. So far he only knew that pulverized polymethyl methacrylate (PMMA) was pressed and moulded. In 1951 he met Berlin optician Otto Marzock. He made his only scleral lenses from using military PMMA windshields. His process involved lathe cutting the lenses and resulted in lenses that were thinner than moulded ones. Willi developed a manufacturing method, using a rotary diamond drill, starting form the outer edge and towards the centre at a constant cut speed. This enabled him to make more reproducible lenses and in less time. His enthusiasm in the field was clear from the travels he made in the pursuit of advancement - travelling around Europe, South America, North America and Asia. In 1963 he visited George Nissel in Hemel Hempstead, England. Constantly thriving towards innovations Willi came across the new Naturalens from the USA made from HEMA at a congress in Marseille in 1969. Amongst his contributions to the field, was his own technique of fitting ocular prosthetics, using an alginate impression of the orbit. I was fortunate enough to have dinner with Willi Kaue and learnt more about his fascinating career through the patient interpreting skills of Hilmar Bussacker (the 2008 winner of the same award and the 2007 winner of the European Federation of the Contact Lens and IOL Industries Award). I look forward to 2010 with eager anticipation as to what I may learn and who I might meet!!! Copyright © 2009 British Contact Lens Association. Published by Elsevier Ltd. All rights reserved.

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It is an Olympic year and we have just witnessed the fantastic games hosted by Rio de Janeiro. Well done to team USA for winning the most medals overall but also well done to so many other nations and individuals who performed so well or were ambassadors in other ways. Teenage swimmer Yusra Mardini who swam for the refugee team and South Africa's Wayde van Niekerk who broke the longstanding 400 m record of Michael Johnson that has stood since 1999. Of course, we must mention sprinter Usain Bolt and swimmer Michael Phelps, who have now transcended superstar status and entered a new level of icon. My personal highlight was the sportsmanship witnessed in the 5000 m when American Abbey D’Agostino was accidentally felled by New Zealand runner Nikki Hamblin. D’Agostino helped Hamblin back to her feet but slumped to the track after realising her own injury. Hamblin helped her up and stayed with her so that both completed the race. The International Olympic Committee has awarded both with the prestigious Pierre de Coubertin award, also known as the International Fair Play Trophy. Fair play is of paramount importance in publishing in peer-reviewed papers. At CLAE we try and maintain, as do other journals, this by ensuring double blind peer review and allowing authors to select the most appropriate handling editor for their submission. Our handling editors are placed across the world (2 in Europe, 1 in the Americas, 1 in Australia and 1 in Asia) and part of their role is to encourage submissions from their region. Over the last decade we certainly have seen more and more papers from places that haven’t previously published in CLAE. In this issue of CLAE we have a true international blend of papers. We have papers from authors from the UK, USA, Iran, Jordan, France, Poland, Turkey, Nigeria, France, Spain and Brazil. I think it's a testament to the continued success of the journal that we are attracting new writers from so many parts of the world and retain papers from more established authors and research centres. We do continue to attract many weaker papers that are rejected early in the review process. Often these will be unexceptional case reports or papers describing a surgical technique. Case reports are published but only those that offer something original and especially those with interesting photographs. In this issue you will see Professor James Wolffsohn (UK) has an interesting paper around a lot of the focus of his recent research activity into clinical evaluation of methods of correcting presbyopia. In this paper he highlights predictors to aid success of presbyopic contact lenses. If you have been involved in any clinical work or research in the field of dry eye disease then you will know well the CLDEQ (Contact Lens Dry Eye Questionnaire) devised by Robin Chalmers and her colleagues (USA). This issue of CLAE details the latest research using the CLDEQ-8 (the 8 item version of the CLDEQ). The Shahroud Eye Cohort Study has produced many papers already and in this issue we see Fotouhi Akbar (Iran) looking at changes in central and peripheral corneal thickness over a five year period. These days we use a lot of new instrumentation, such as optical low-coherence reflectometry. In this issue Emre Güler (Turkey) compares that to a new optical biometry unit. Dry eye is more common and in this issue we see a study by Oluyemi Fasina (Nigeria) to investigate the disease in adults in South-West Nigeria. The TearLab™ is now commonly used to investigate osmolarity and Dorota Szczesna-Iskander (Poland) looks at measurement variability of this device. Following the theme of dry eyes and tear testing Renaud Laballe (France) looks at the use of scleral lenses as a reservoir-based ocular therapeutic system. In this issue we have a couple of papers looking at different aspects of keratoconus. Magdalena Popiela (UK) looks at demographics of older keratoconic patients in Wales, Faik Orucoglu (Turkey) reports a novel scoring system for distinguishing keratoconus from normal eyes, Gonzalo Carracedo (Spain) reports the effect of rigid gas permeable lens wear on dry eye in keratoconus and Hatice Nur Colak (Turkey) compares topographic and aberrations in keratoconus. Other interesting papers you will find are Mera Haddad (Jordan) investigates contact lens prescribing in Jordan, Camilla Fraga Amaral (Brazil) offers a report on the use of ocular prosthetics, Naveed Ahmed Khan (Malaysia) reports of the use of dimethyl sulfoxide in contact lens disinfectant and Michael Killpartrick (UK) offers a short piece with some useful advice on contamination risk factors that may occur from the posterior surface of disposable lenses. So for this issue I would say that the Gold Medal for biggest contribution in terms of papers has to go to Turkey. I could have awarded it to the UK too, but Turkey has three full papers and the UK has two plus one short communication. Turkey is also one of the countries that has shown the largest increase in submissions over the last decade. Finally, welcome aboard to our newest Editorial Board Member Nicole Carnt from Australia. Nicole has been an active researcher for many years and acted as a reviewer for CLAE many times in the past. We look forward to working with you.