Fontan P, Maillard P, Bec P, Mathis A, Charlet J P
J Fr Ophtalmol. 1985;8(2):165-71.
The Octopus automatic perimeter was used to determine changes in visual field of 90 patients with chronic open angle glaucoma. Mean sensitivity value calculated from 62 of the 73 points of the apparatus program 33 - after elimination of those 11 points corresponding to Mariottes's zone and the central 10 degrees - provides an effective paracentral visual field monitoring numerical parameter. The authors named the parameter "global value". Statistical analysis of "global value" variations between two successive examinations showed: significant improvement between the first and the second tests; disappearance of the phenomenon between two further successive tests. The reasons for this pseudo-improvement remain unclear: perhaps the patients experience gained from the precious tests plays a part in the phenomenon. This should in any case be taken into account when assessing possible aggravation between two tests. Analysis of results suggests that, as a standard evaluation method, any "global value" degradation of the order of 1 db between the first two tests and 3 db between two successive tests performed after the second one is significant of a visual field degradation with a 1% range of error.
使用章鱼自动视野计来测定90例慢性开角型青光眼患者的视野变化。在剔除仪器程序33中对应于生理盲点区和中央10度的11个点后，由73个点中的62个点计算得出的平均敏感度值，提供了一个有效的旁中心视野监测数值参数。作者将该参数命名为“全局值”。对两次连续检查之间“全局值”变化的统计分析表明：第一次和第二次检查之间有显著改善；在接下来的两次连续检查之间该现象消失。这种假性改善的原因尚不清楚：也许患者从前次检查中获得的经验在该现象中起了作用。在评估两次检查之间可能的病情加重时，无论如何都应考虑到这一点。结果分析表明，作为一种标准评估方法，在前两次检查之间“全局值”下降1分贝以及在第二次检查之后进行的两次连续检查之间下降3分贝，表明视野恶化，误差范围为1%。
