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Got the Blues with Macular Degeneration

Show simple item record Baker, Morgan Anne LeFevre, Danielle Renae 2017-08-15T00:59:57Z 2017-08-15T00:59:57Z 2017-05-01
dc.description This paper is submitted in partial fulfillment of the requirements for the degree of Doctor of Optometry. 24 pages. en_US
dc.description.abstract Background: Oxidative stress induced by low-wavelength visible light is a known risk factor for developing age-related macular degeneration (AMD). Exposure to sources emitting light from the blue region of the visible spectrum could negatively affect the state of AMD. While low vision patients with AMD benefit visually from illuminated magnifying devices, it should be considered that some may emit and transmit wavelengths that cause harm to the retinal tissue of the eye. Methods: The visible spectra of light both emitted and transmitted were measured for commonly used illuminated handheld magnifiers, including the Eschenbach 3X/12D Mobilux LED magnifiers, the Optelec PowerMag+ 4X/12D LED magnifier, and the Eschenbach 3.5X/10D incandescent magnifier. These spectra were obtained using the Sekonic C-700 Spectromaster spectrometer. Additionally, the transmittance of UV and visible light through each handheld magnifier was measured using the Beckman DU6408 spectrophotometer. Results: Data collected indicate that the illuminated low vision devices examined in this study emit short-wavelength visible light. These data also reveal that these devices transmit over 90% of this light through the magnifying lenses themselves. Conclusions: The illuminated low vision devices evaluated in this study were not determined to produce harmful levels of radiation based on current studies involving phototoxic damage to retinal anatomy. en_US
dc.language.iso en_US en_US
dc.relation.ispartofseries UA 29;
dc.subject Pole, John. O.D. Faculty advisor. en_US
dc.subject Age related macular degeneration. en_US
dc.subject Oxidative stress. en_US
dc.subject Spectral irradiance. en_US
dc.title Got the Blues with Macular Degeneration en_US
dc.type Thesis en_US

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