Lenses for Light Distribution
نویسندگان
چکیده
منابع مشابه
Light scattering in donor lenses
Light scattering for normal and cataractous lenses from 21-86 yr old donors was measured in vitro. As expected, scattering increased with severity of cataract. Scattering decreased with angle according to a power law. This corresponded to the power law finding for functional straylight measurements in early-cataract patients using white light (power around -2). In vitro, straylight increased mo...
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PURPOSE To evaluate efficacy, predictability, and stability of refractive treatments using light-adjustable intraocular lenses (IOLs). SETTING University Hospital Virgen de la Arrixaca, Murcia, Spain. DESIGN Prospective nonrandomized clinical trial. METHODS Eyes with a light-adjustable IOL (LAL) were treated with spatial intensity profiles to correct refractive errors. The effective chang...
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The use of a lateral shear interferometer in measuring the power variation of ophthalmic lenses is described and demonstrated. It is shown that an appropriate lateral shear interferometer directly measures the power variation of an ophthalmic lens. If the ophthalmic lens has a toric surface, the power for each axis can be measured separately. Individual surfaces can be tested, as well as the wh...
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Aims. The dark matter content of early type galaxies (ETGs) is a hotly debated topic with contrasting results arguing in favour of or against the presence of significant dark mass within the effective radius and the change with luminosity and mass. To address this question, we investigate here the global mass to light ratio Υ(r) = M(r)/L(r) of a sample of 21 lenses observed within the Sloan Len...
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Blue light can damage retina and cause age related macular degeneration. After cataract surgery and lens removal retina stays unprotected. Blue light filtering intraocular lenses (IOL) increase protection of the retina. In our prospective study we investigated clinical results after bilateral implantation of Acrysof Natural IOL to 30 patients (N = 60 eyes). In a control group (N = 60 eyes, 30 p...
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ژورنال
عنوان ژورنال: Proceedings of the Physical Society of London
سال: 1915
ISSN: 1478-7814
DOI: 10.1088/1478-7814/28/1/321