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頁籤選單縮合
題 名 | Evaluation of Optic Disc Changes in Severe Myopia=高度近視者神經盤變化之評估 |
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作 者 | 王清泓; 林思源; 施永豐; 黃兆康; 林隆光; 洪伯廷; | 書刊名 | 臺灣醫學會雜誌 |
卷 期 | 99:7 2000.07[民89.07] |
頁 次 | 頁559-563 |
分類號 | 416.765 |
關鍵詞 | 高度近視; 神經盤; 眼軸長度; Axial length; Myopia; Optic disc; Neuroretinal rim; Laser scanning ophthalmoscopy; |
語 文 | 英文(English) |
英文摘要 | Purpose: To evaluate the changes in the optic nerve head in highly myopic subjects by means of confocal laser scanning opthalmoscope. Methods: Using laser scanning and a three-dimensional image analysis system, we studied 114 young (21.4 �b�n1.4 years), highly myopic subjects with refractive errors greater than –8.0 D and a control group of 29 subjects (18.9 �b�n1.2 years) with myopia of –3.0 D or less. Measurements included cycloplegic refraction, corneal curvature, biometric axial length, and morphometric values of the optic disc obtained with a laser scanning disc analyzer. Results: The optic disc area in highly myopic eyes was similar to that in mildly myopic eyes. However, regression analysis revealed that the optic disc area increased with axial length in subjects with severe myopia. The cup/disc ratio, the disc depth, the neuroretinal rim area, and the tilting of the disc were not significantly different between the severe and mild myopia groups. Conclusions: These findings may be useful in further investigations of myopic progression and of the mechanisms responsible for the development of myopic complications. |
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