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KMID : 1036520210110010001
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Clinical Neuro-Ophthalmology
2021 Volume.11 No. 1 p.1 ~ p.3
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The Differential Diagnostic Features of Glaucoma and Non-Glaucomatous Optic Neuropathy
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Park Yuli
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Abstract
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Glaucoma is a chronic progressive optic neuropathy caused by retinal ganglion cell degeneration which results in loss of visual field. Optic nerve head shows a vertically enlarged cup and neuroretinal rim remains pink, not pale. The visual acuity is preserved relatively well and the color vision remains intact until the advanced stage. The visual field defects typically respect the horizontal meridian with distinguishing arcuate pattern. Differential diagnosis is difficult especially with those that reveal optic disc cupping, such as hereditary optic neuropathy, anterior ischemic optic neuropathy, those associated with compressive lesions. Neuro-ophthalmic work up is required in conditions such as a young patient with cupping, headache or diplopia, presenting with sudden loss of vision or rapidly progressive vision loss, showing a relative afferent pupillary defect. In these neurophthalmic conditions the color vision is usually impaired and optic nerve head shows pallor more than cupping especially in the temporal quadrant. The visual field defects typically respect the vertical meridian. It is significant to differentiate theses optic neuropathies from glaucoma.
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KEYWORD
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Glaucoma, Optic disc, Neuro-ophthalmology
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FullTexts / Linksout information
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Listed journal information
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