نتایج جستجو برای: sclera
تعداد نتایج: 2041 فیلتر نتایج به سال:
1 Purpose: The posterior sclera has a major biomechanical influence on the optic nerve 2 head, and may therefore be important in glaucoma. Scleral material properties are 3 influenced significantly by collagen fiber architecture. Here we quantitatively map fiber 4 orientation in non-glaucoma and glaucoma posterior human scleras. 5 Methods: Wide-angle x-ray scattering quantified fiber orientatio...
PURPOSE Uveoscleral outflow provides a potential pathway to the posterior segment for drug delivery. In this study, the influence of molecular weight on the intraocular distribution of dextran molecules after intracameral injection in the mouse eye was investigated. METHODS The anterior chambers of the eyes of 64 anesthetized NIH Swiss mice were perfused with various fluorescent dextran solut...
An Indian case of Alport's syndrome who had association of keratoglobus and blue sclerae is described.
In order to clarify the morphological uniqueness of the human eye and to obtain cues to understanding its adaptive significance, we compared the external morphology of the primate eye by measuring nearly half of all extant primate species. The results clearly showed exceptional features of the human eye: (1) the exposed white sclera is void of any pigmentation, (2) humans possess the largest ra...
Over the past decade, engineering principles have been used to explain why a mechanical load, intraocular pressure, can lead to the development of glaucomatous optic neuropathy. This has led to the 'biomechanical theory' of glaucoma, which posits that the behavior of optic nerve head connective tissues (specifically within the peripapillary sclera and lamina cribrosa) in response to intraocular...
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