视野检查,出现早期血管暗点样的扩大,对青光眼的早期诊断、观察其进展的情况以及决定予后治疗有一定的价值。但由于同一病的不同时期,其改变不同;每个人的视神经纤维及视网膜血管的关系、缺损的表现不同,更重要的是检查方法的影响,采用的检查方法不一样,所得的结果也不一样。检查时,其它因素也可以影响视野的改变如屈光不正、瞳孔的大小等,凡是动态视野计检查所用的背景光强弱、试标形状大小、检 Visual field examination, the darkening of the early blood vessels appear to expand, the early diagnosis of glaucoma, observe the progress of the situation and decided to post-treatment have some value. However, due to the different stages of the same disease, the different changes; each person’s optic nerve fibers and retinal vascular relationship, the performance of the defect is different, more importantly, the impact of test methods, using different methods of inspection, the results obtained are not the same . Inspection, other factors can also affect the visual field changes such as refractive error, the size of the pupil, etc., any dynamic horizons used to check the background light intensity, the size of the test shape, test