METHODS: Eighty-eight eyes of 70 patients diagnosed with PCG were included. Assessments were performed using an Octopus 900 and each eye was assessed with the tendency-oriented perimetry (G-TOP) algorithm. Quantitative VF data were collected: quality data (false positive and negative response, and time duration) and results of mean deviation (MD) and square root of loss variance (sLV). Qualitative data were collected: the presence of diffuse and localized defects, the affected hemifield and grade of defects using the Aulhorn and Karmeyer classification. Correlations between perimetric results and clinical variables were analysed.
RESULTS: Median age was 11 (8-17) years. 65.9% (58/88) of PCG eyes showed VF defects. Diffuse defects were observed in 10/58 eyes (16.94%) (mean MD = 23.92 [SD: 2.52]) dB) and localized defects in 48/58 eyes (82.75%). The most frequent defect was spot-like/stroke-like/incipient paracentral scotoma (n = 15), nasal step (n = 8), adding arcuate defect (n = 2), half ring-shaped (n = 13) and concentric defect with a central island (n = 9). And the most frequent affected visual hemifield was inferior hemifield. Mean test duration was 2 min 12 s (SD: 21.6 s). MD and sLV values were correlated with best corrected visual acuity (BCVA), cup to disc ratio and number of antiglaucoma surgeries (all P < .001).
CONCLUSIONS: A high number of diffuse and localized defects were identified using Octopus perimetry in PCG patients. The most frequent defect was paracentral scotoma and inferior hemifield was the most affected.
方法:纳入诊断为PCG的70例患者88只眼。使用章鱼900进行评估,并使用趋势导向视野(G-TOP)算法评估每只眼睛。收集定量VF数据:质量数据(假阳性和阴性反应,和持续时间)以及平均偏差(MD)和损失方差平方根(sLV)的结果。收集了定性数据:弥漫性和局部缺陷的存在,使用Aulhorn和Karmeyer分类的受影响的半球和缺陷等级。分析了周边结果与临床变量之间的相关性。
结果:中位年龄为11(8-17)岁。65.9%(58/88)的PCG眼出现VF缺损。在10/58眼中观察到弥漫性缺陷(16.94%)(平均MD=23.92[SD:2.52])dB,在48/58眼中观察到局部缺陷(82.75%)。最常见的缺陷是斑点样/中风样/初期的中央旁暗点(n=15),鼻台阶(n=8),添加弧形缺陷(n=2),半环形(n=13)和同心缺陷与中心岛(n=9)。最常见的视觉半场是下半场。平均测试持续时间为2分钟12秒(SD:21.6秒)。MD和sLV值与最佳矫正视力(BCVA)相关,杯盘比和抗青光眼手术次数(均P<.001)。
结论:在PCG患者中使用章鱼视野检查发现大量弥漫性和局部缺陷。最常见的缺陷是中央旁暗点,下半场受影响最大。