Atanassov M, Konareva-Kostianeva M
Department of Ophthalmology, Higher Medical Institute, Plovdiv, Bulgaria.
Folia Med (Plovdiv). 1998;40(2):46-51.
To evaluate the feasibility of using the grading algorithm utilized by the Advanced Glaucoma Intervention Study (AGIS) on a Humphrey Field Analyser with program 9 (76/30 degrees Threshold Grid) of a computerized perimeter DICON TKS 4000 and find whether the obtained score can be used to determine the stage of glaucoma.
Computerized perimetry was performed on 205 eyes with proven or suspected glaucoma. Visual field changes were assessed first subjectively, and then with the scoring method used in AGIS: the size, depth, and location of the visual field defects, and the nasal step were determined using a stencil and then the final score was calculated.
Of 205 eyes examined 79 had perimetric changes. These were allocated subjectively into four groups corresponding to four stages of glaucoma: initial, evoluted, advanced and terminal. The mean scores for each group were calculated. There was a statistically significant correlation between the score and the stage of glaucoma. The mean scores for the first 3 stages differed significantly from each other. For stages 3 and 4 the difference was not statistically significant.
The AGIS scoring method, developed originally for program 30-2 of the Humphrey Field Analyzer, can be applied with the 30 degrees Threshold Grid program of DICON TKS 4000 Perimeter for objective assessment of the glaucoma stage.
评估在DICON TKS 4000电脑视野计的程序9（76/30度阈值方格）的汉弗莱视野分析仪上使用高级青光眼干预研究（AGIS）所采用的分级算法的可行性，并确定所获得的分数是否可用于确定青光眼的分期。
对205只已证实或疑似患有青光眼的眼睛进行电脑视野检查。首先主观评估视野变化，然后采用AGIS中使用的评分方法：使用模板确定视野缺损的大小、深度和位置以及鼻侧阶梯，然后计算最终分数。
在检查的205只眼中，79只有视野变化。这些视野变化被主观分为与青光眼四个阶段相对应的四组：初期、进展期、晚期和终末期。计算每组的平均分数。分数与青光眼分期之间存在统计学上的显著相关性。前3个阶段的平均分数彼此差异显著。第3阶段和第4阶段之间的差异无统计学意义。
最初为汉弗莱视野分析仪的程序30-2开发的AGIS评分方法，可应用于DICON TKS 4000视野计的30度阈值方格程序，以客观评估青光眼分期。
