Pathogenesis of cupping of the optic disc
Pathogenesis of cupping of the optic disc
复制标题
视盘拔罐的发病机制
DOI：
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发表时间：
1976
期刊：
影响因子：
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通讯作者：
John Primrose
中科院分区：
文献类型：
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作者：
John Primrose
SIR, Professor Hayreh has performed a great service in reiterating the ischaemic nature of optic disc cupping and of the particular susceptibility of the prelaminar tissue and peripapillary choroid to imbalance between the intraocular pressure and local perfusion pressure (Hayreh, 1974a). I would disagree with him, however, that the atrophic cupping seen after temporal arteritis is 'identical in all aspects' to that seen in glaucoma and low-tension glaucoma. Since the occurrence of cupping in temporal arteritis was first brought to my notice at the Oxford Congress in 1972 (Miller, I972) I have been looking at my cases for this and have, indeed, found cupping not infrequently. I assume that Professor Hayreh is referring to the clinical appearance of the discs and not to other clinical details such as the complete loss of vision or gross altitudinal loss in the one compared to the usual presence of good vision, apart from typical scotomata, in the other. No one is likely to confuse them clinically and it may be on this account, as well as its rather tardy development in many cases, that its occurrence in temporal arteritis has previously been practically overlooked. But there are some differences in ophthalmoscopic appearance, especially before the intraocular pressure has been normalized. The glaucomatous cup is of a darker grey especially where it
