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进行性青光眼患者的视神经损伤,其盘沿面积会逐渐缩小,盘沿形态不断改变。此横向研究在于建立一个青光眼盘沿缺失的模式。作者评价了801只青光眼及496只视力正常眼的立体彩色视盘照像。结果:与视力正常眼比较,青光眼盘沿缺失可发生于视盘任何部位,并根据青光眼病程的不同阶段而有好发区域。轻度青光眼损伤眼,盘沿缺失通常在视盘颞下区最明显;中度进行性青光眼损伤,盘沿减少在颞上部最明显。在很晚期青光眼,盘沿残留通常仅见于视盘鼻侧区,而且鼻上区明显大于鼻下区。结论:与弥散方式不同,青光眼盘沿缺失的发生,在各部分有一顺序。一般说,其开始于视盘颞下区,然后逐渐出现于颞上、颞侧水平,鼻下,最终是鼻上区。这与视野缺损的进展及筛板的形态学有关。这一发现对青光眼的早期诊断可能是重要的。
Optic nerve damage in patients with progressive glaucoma, its disc area will be gradually reduced, the disc along the form of continuous change. This horizontal study consists in establishing a pattern of missing along the rim of the glaucoma. The authors evaluated 801 glaucoma and 496 eyesight stereoscopic color disc images. Results: Compared with normal eyesight, glaucoma along the disc can occur in any part of the optic disc, and according to the different stages of glaucoma and have a good hair area. Mild glaucoma eye injury, disc along the absence of disc is usually the most obvious optic disc in the temporal region; moderate progressive glaucoma, disc edge reduction in the temporal superior part of the most obvious. In very advanced glaucoma, disc margins are usually found only in the nasal optic disc area, and the nasal area is significantly greater than the nasal area. CONCLUSIONS: Differing from the mode of diffusion, the occurrence of glaucoma along the disc rim occurs in a sequence. In general, it begins with the optic disc in the inferior temporal region, and then gradually appears in the superior temporal, temporal, nasal, and eventually nasal regions. This is related to the progression of visual field defect and the morphology of the sieve plate. This finding may be important for the early diagnosis of glaucoma.