Age Effect on Retina and Optic Disc Normal Values
نویسندگان
چکیده
منابع مشابه
Age effect on retina and optic disc normal values.
PURPOSE To investigate retinal thickness and optic disc parameters by the Retinal Thickness Analyzer (RTA) glaucoma program in older normal subjects and to determine any age effect. METHODS Subjects over 40 years of age without any prior history of eye diseases were recruited. Only subjects completely normal on clinical ophthalmologic examination and on visual field testing by Humphrey Field ...
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AIMS/BACKGROUND It has been reported that the number of optic nerve fibres decrease with age, and the cup/disc (C/D) ratio increases as the optic disc size increases. Consequently, the normal value of the optic disc variables measured by an optic disc analyser may change according to the optic disc size or age. The effect of individual variations in optic disc size or age on interpretation of o...
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One hundred thirty stereo photographs of optic discs in patients with normal tension glaucoma (NTG) were reviewed in order to identify characteristics of the three following types of NTG: focal ischemic, senile sclerotic, and generalized cup enlargement. Twenty patients in each group were selected. Focal ischemic patients were more frequently women, had a higher incidence of migraine, a relativ...
متن کاملFeatures of a Clinically Normal Optic Disc.
WE felt that a survey and analysis of the features of normal optic discs could perhaps be rewarding, as such a study had not been carried out, as far as we knew, since the work of Thompson (1920), Picard (1921, 1923), and Bednarski (1925) (Williamson-Noble, 1961). We were of the opinion that to obtain reliable results the study must be confined to simple points observed in the course of a routi...
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PURPOSE To investigate the characteristics of optic disc parameters in amblyopic eyes in which retinal involvement is uncertain. METHODS A total of 44 patients with a history of unilateral amblyopia (27 patients with persistent amblyopia and 17 patients with resolved amblyopia) were examined using the Heidelberg Retina Tomograph (HRT) II. Parameters examined included disc area, cup area, cup ...
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ژورنال
عنوان ژورنال: Ophthalmic Research
سال: 2005
ISSN: 0030-3747,1423-0259
DOI: 10.1159/000087067