论文部分内容阅读
于暗室内以把宽度为0.5 mm中等强度的水平裂隙灯光投照于瞳孔缘,光线射入眼内瞳孔即持续地有规则收缩开大。此收缩开大周期的平均时间称瞳孔周期时间。用电子手控跑表每次计测10个周期,至少测6次,以总周期数除总计时间,即得以毫秒(msec)为单位的瞳孔周期时间。 11例22眼视神经被压迫的病人中(9例为交叉部肿物,2例为伴有视神经病变的Graves病)15眼的测得瞳孔周期时间。11例病人至少有一眼的瞳孔周期时间不正常即>954 msec或两眼相差>70 msec。治疗前瞳孔周期时间的改变和视力视野的改变程度相平行。减压术后视力视野有改善,瞳孔周期时间亦有改善。多数病例二者的改善是相对应的。
In the dark room to the width of 0.5 mm moderate intensity horizontal slit lamp illumination on the pupil edge, the light into the eye pupil that is regularly contracted open large. The average length of this systolic large cycle is called the pupil cycle time. With the electronic manual stopwatch measuring 10 cycles at a time, measuring at least 6 times, dividing the total number of cycles by the total time, ie the pupil cycle time in milliseconds (msec). The pupillary cycle time measured in 15 eyes of 11 patients with optic nerve compression (9 with Graves’ disease in the cross and 9 with optic neuropathy). At least one of 11 patients had an abnormal pupil cycle time of> 954 msec or a difference of> 70 msec between eyes. Changes in pupil cycle time before treatment were comparable to changes in visual field. Visual acuity improved after decompression surgery, pupillary cycle time also improved. The improvement in most cases corresponds to both.