Evaluation of the Optic Nerve Head in Glaucoma
نویسندگان
چکیده
منابع مشابه
Evaluation of the Optic Nerve Head in Glaucoma.
Glaucoma is an optic neuropathy leading to changes in the intrapaillary and parapaillary regions of the optic disk. Despite technological advances, clinical identification of optic nerve head characteristics remains the first step in diagnosis. Careful examination of the disk parameters including size, shape, neuroretinal rim shape and pallor; size of the optic cup in relation to the area of th...
متن کاملQuantitative evaluation of the optic nerve head in early glaucoma.
AIMS Progressive loss of neuroretinal rim tissue is known to occur early in glaucoma and measurement of the neuroretinal rim area is possible by magnification corrected analysis of optic disc photographs (planimetry). This study was performed to determine whether the facility to distinguish between glaucomatous and normal optic discs could be improved upon by: (a) taking into account the known ...
متن کاملClinical Evaluation of Optic Nerve Head in Glaucoma
Glaucomatous optic neuropathy is characterized by changes in the intrapapillary and parapapillary region of the optic nerve head, including excavation of the optic nerve head and consequent defects in retinal sensitivity with visual field defects and other psychophysical alterations. Clinical evaluation of the optic nerve head has been shown to have a high specificity and good precision for gla...
متن کاملThe optic nerve head in myocilin glaucoma.
PURPOSE Approximately 1 in 30 unselected patients with open-angle glaucoma (OAG) have a mutation in the myocilin gene. The purpose of this study was to describe the morphologic features of the optic nerve head (ONH) in myocilin glaucoma. METHODS A case-control design was adopted. Sixty-six patients heterozygous for a range of myocilin mutation (cases) were matched in disease severity to 105 p...
متن کاملThe optic nerve head in glaucoma
The ONH can be examined using a direct ophthalmoscope, an indirect ophthalmoscope, or a posterior pole lens with a slit lamp. Many types of health professional can assess the ONH accurately after having appropriate training. Dilating the pupil makes this easier and will improve the accuracy of the examination, regardless of which instrument is used. Where the equipment is available, more sophis...
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ژورنال
عنوان ژورنال: Journal of Current Glaucoma Practice
سال: 2013
ISSN: 0974-0333,0975-1947
DOI: 10.5005/jp-journals-10008-1146