998 resultados para Selbo, Glenn


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There has been a low level of interest in peripheral aberrations and corresponding image quality for over 200 years. Most work has been concerned with the second-order aberrations of defocus and astigmatism that can be corrected with conventional lenses. Studies have found high levels of aberration, often amounting to several dioptres, even in eyes with only small central defocus and astigmatism. My investigations have contributed to understanding shape changes in the eye with increases in myopia, changes in eye optics with ageing, and how surgical interventions intended to correct central refractive errors have unintended effects on peripheral optics. My research group has measured peripheral second- and higher-order aberrations over a 42° horizontal × 32° vertical diameter visual field. There is substantial variation in individual aberrations with age and pathology. While the higher-order aberrations in the periphery are usually small compared with second-order aberrations, they can be substantial and change considerably after refractive surgery. The thrust of my research in the next few years is to understand more about the peripheral aberrations of the human eye, to measure visual performance in the periphery and determine whether this can be improved by adaptive optics correction, to use measurements of peripheral aberrations to learn more about the optics of the eye and in particular the gradient index structure of the lens, and to investigate ways of increasing the size of the field of good retinal image quality.

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Esta investigación se origina de las evidencias encontradas al conocer la historia en torno al niño con ENFERMEDAD MOTRIZ DE ORIGEN CEREBRAL (EMOC) o PARÁLISIS CEREBRAL (PC) (como lo describe el Dr. Valentín Malagón Castro en su libro Tratado de Ortopedia y Traumatología (10), las cuales demostraban la perspectiva biopsicosocial errónea que existía de la enfermedad. Esta perspectiva pasó de ser ajena e indiferente a las necesidades del niño, a centrarse en su bienestar global (11), como se puede observar en la técnica planteada por Glenn Doman terapeuta físico que inicio estudios en la universidad de Medicina de Temple en Filadelfia, Estados Unidos de Norte América, después de muchos años de investigación sintió la necesidad de implementar una técnica, la cual plantea desde 1945 e implementa con gran acogida desde los años 50, 60 y 70, la cual busca desarrollar el potencial humano, mediante una metodología que propone estrategias para lograr la organización neurológica necesaria para que el cerebro realice las funciones de una forma más correcta, mejorando de esta manera la funcionalidad del niño y por lo tanto su calidad de vida.