yes / There is limited information regarding the views of patients, as healthcare consumers, on visual field testing, and no information regarding their preferences for future test developments. This study aimed to increase knowledge of patients' subjective experience of visual field assessment and to explore their opinions and priorities regarding current active areas of research and development. Online questionnaire with purposive sampling design. Adults who regularly perform visual field tests in Australia who report having glaucoma or being at risk of glaucoma. An anonymous survey, implemented using the Qualtrics webtool, with both closed and open ended questions designed to explore opinions regarding visual field testing, visit attendance for perimetry, as well as priorities for developments. The survey assessed three domains: 1) opinions regarding visual field test duration and visit frequency; 2) subjective experience; and 3) perspectives on future developments for perimetry. 152 complete survey responses were obtained. The median (IQR) age of participants was 66 (60-72) years. Most participants (70%) had experience of performing more than 11 visual field tests. Participants recalled that they completed visual field tests in median of 6 minutes (IQR: 5-8 minutes) and were willing to accept additional time (median: 5, IQR: 3-6 minutes) to obtain more information. Participants were prepared to increase both the number of visual field tests per eye and the frequency of visual field tests (median: 3, IQR: 2-4 visits per year), in order to gain more information about their visual status. Regarding future developments, the most preferred option was "similar test times but an increase in the level of information about my visual field", which ranked significantly higher than all other options including "shorter test times that maintain the currently available level of information about my visual field." Our study confirms, in a different population and healthcare system, previous research reporting patient perspectives on visual field assessment. We further reveal that healthcare consumers show a strong preference for accurate information about their vision and report being prepared to undergo longer visual field tests or more visual field tests to achieve that outcome.

No description available.

A presente dissertação deseja mostrar a utilização do estudo de confiabilidade como uma ferramenta de melhoria de projeto de um produto. Para atingir o objetivo estudou-se a melhoria de um retentor automotivo através do estudo de sua confiabilidade e utilizando técnicas de engenharia do valor. Com esse estudo pretende-se mostrar a relação dos dados de campo e ensaios funcionais utilizados. Através da análise dos dados de campo, foi selecionada uma característica funcional a ser melhorada no produto. A técnica de engenharia do valor aplicada ao produto resultou na variável que deveria ser melhorada no produto, e a análise de confiabilidade antes e após a alteração no produto, juntamente com os ensaios funcionais acelerados mostram a eficácia da melhoria realizada no produto. / This research aims to show a way to use the reliability study as a tool to guarantee the improvements in a product design. To reach the goal, a improvement in a oil seal was executed through the study of its reliability and using the value engineer technique. This study aims to show the relationship between the field information and functional tests. Through the analysis of field information, the functional characteristic that must be improved in the product was selected, and the value engineering technique application result in an element that must be improved in a product. The reliability study after and before the change in product, together with functional tests showed the efficiency of the change in the product aimingat improving its operational life.

A presente dissertação deseja mostrar a utilização do estudo de confiabilidade como uma ferramenta de melhoria de projeto de um produto. Para atingir o objetivo estudou-se a melhoria de um retentor automotivo através do estudo de sua confiabilidade e utilizando técnicas de engenharia do valor. Com esse estudo pretende-se mostrar a relação dos dados de campo e ensaios funcionais utilizados. Através da análise dos dados de campo, foi selecionada uma característica funcional a ser melhorada no produto. A técnica de engenharia do valor aplicada ao produto resultou na variável que deveria ser melhorada no produto, e a análise de confiabilidade antes e após a alteração no produto, juntamente com os ensaios funcionais acelerados mostram a eficácia da melhoria realizada no produto. / This research aims to show a way to use the reliability study as a tool to guarantee the improvements in a product design. To reach the goal, a improvement in a oil seal was executed through the study of its reliability and using the value engineer technique. This study aims to show the relationship between the field information and functional tests. Through the analysis of field information, the functional characteristic that must be improved in the product was selected, and the value engineering technique application result in an element that must be improved in a product. The reliability study after and before the change in product, together with functional tests showed the efficiency of the change in the product aimingat improving its operational life.

No description available.