Optical quality during crystalline lens growth (reply)
نویسندگان
چکیده
منابع مشابه
Aging and the optical quality of the rat crystalline lens.
Split laser beams of varying separation were directed through the crystalline lenses of rats of young, old, and intermediate age. The variation in back vertex distance was determined from photographs of the focal effects of each lens. The results indicate that negative spherical aberration of the rat lens increases with age. In addition, local reversals in the slopes of the negative spherical a...
متن کاملEffects of experimentally induced ametropia on the morphology and optical quality of the avian crystalline lens.
PURPOSE To examine the effects of refractive error on avian lens morphology and optical quality. METHODS Hatchling white leghorn chicks were unilaterally goggled for 7 days with either a form-deprivation goggle (n = 12), a -10 D defocus goggle (n = 12), or a +10 D defocus goggle (n = 12) to induce myopia and hyperopia. Optical quality of lenses (focal length and focal length variability) from...
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• Vol 10 • March 2008 Ocular Features of Marfan Syndrome The main ocular features of Marfan syndrome, all of which can result in decreased vision, include bilateral ectopia lentis (lens dislocation), myopia and retinal detachment [1]. About 50% of patients with Marfan syndrome are diagnosed by an ophthalmologist; some individuals may present with isolated ocular signs suggestive of this syndrom...
متن کاملCrystalline Lens With Focus
Methods. Scheimpflug slit-lamp photography, as well as a variety of standard ophthalmologic methods, was used to collect information about lens and anterior segment sagittal dimensions in a population of 82 adults with refractive error < 12.01 diopters and at least 0.25 diopter of accommodation for subjects 18 to 70 years of age. Data were analyzed statistically for dependence on accommodation,...
متن کاملTreatment of Presbyopia during Crystalline Lens Surgery – A Review
Ophthalmic surgeons should treat presbyopia during crystalline lens surgery. Thanks to the quality and advancements in multifocal implant designs effective, high-quality solutions are already available to treat presbyopia in most patients undergoing crystalline lens surgery. Unless the implantation of multifocal IOLs is contraindicated, the treatment solution that may provide spectacle and cont...
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ژورنال
عنوان ژورنال: Nature
سال: 1984
ISSN: 0028-0836,1476-4687
DOI: 10.1038/312292a0