短波自动视野检查在早期原发性开角型青光眼诊断中的应用

目的探讨短波自动视野检查(SWAP)在早期原发性开角型青光眼(POAG)中的应用价值。方法应用Humphrey II 750i电脑自动视野分析仪对正常组、早期POAG患者分别进行白白视野(WWP)、SWAP检查,并对各组测得的平均偏差(MD)、图形标准偏差(PSD)、缺损点数(选择模式偏差概率图中P<0.05的异常点)进行比较和分析。结果早期POAG患者的SWAP检测的MD、PSD较WWP检测的数值大,缺损点数多,二者比较差异有统计学意义(P<0.05)。早期POAG患者42只眼中SWAP检测阳性者38只眼,阳性率为90.48%;WWP检测阳性者28只眼,阳性率为66.67%。结论在POAG的早期诊断中SWAP较WWP更敏感,检出的阳性率更高,SWAP较WWP检出的视野缺损更深范围更大,甚至能够发现一些WWP所不能检测出的已受损的检测位点。

短波自动视野检查与标准白白视野检查在原发性开角型青光眼中对比研究

目的 探讨短波自动视野检查（SWAP）在原发性开角型青光眼（POAG）中的应用价值,期望能为临床对POAG的诊断提供一种较好的检查方法.方法 临床病例对照研究.对2011年6月至2014年6月在河北省眼科医院应用HumphreyII 750i电脑自动视野分析仪对正常组、POAG组分别进行白白视野（WWP）、SWAP检查,并对各组测得的平均偏差（MD）、图形标准偏差（PSD）、缺损点数（选择模式偏差概率图中P ＜0.05的异常点）进行比较和分析.结果 早、中期POAG患者的SWAP检测的MD、PSD较WWP检测的数值大,缺损点数多,二者比较差异有统计学意义（P＜0.05）;晚期患者SWAP和WWP检测的结果差异无统计学意义（P＞0.05）.早期POAG患者42只眼中SWAP检测阳性者38只眼,阳性率为90.48％ （38/42）;WWP检测阳性者28只眼,阳性率为66.67％ （28/42）;中期患者阳性率为100％ （48/48）;晚期患者阳性率为100％ （18/18）.结论 在早、中期POAG的视野检查中SWAP较WWP检出的视野缺损更深范围更大,甚至能够发现一些WWP所不能检测出的已受损的检测位点.在POAG的早期诊断中SWAP较WWP更敏感,检出的阳性率更高,晚期视野检测中SWAP和WWP具有一致性,优势不明显.

短波长自动视野检查中学习因素对结果产生的影响程度

Purpose: To document the magnitude of any learning effect for short-wave length automated perimetry (SWAP) in patients with either ocular hypertension (OHT) or open-angle glaucoma (OAG) who are experienced in standard automated perimetry (SAP). Design: Experimental study. Participants: Thirty-five patients (22 with OHT and 13 with OAG) who had previously undergone at least 3 threshold SAP visual field examinations with the Humphrey Field Analyzer (HFA; Carl Zeiss Meditech Inc.,Dublin,CA),and 9 patients with OHT who had not previously undertaken any form of perimetry. Methods: Each patient attended for SWAP on 5 occasions,each separated by 1 week. At each visit,both eyes were examined using Program 24-2 of the HFA; the right eye was always examined before the left eye. Main Outcome Measures: (1) Change over the 5 examinations,in each eye,of the visual field indices Mean Deviation (MD),Short-term Fluctuation (SF),Pattern Standard Deviation (PSD),and Corrected Pattern Standard Deviation. (2) Change in each eye between Visits 1 and 5 in proportionate Mean Sensitivity (pMS) for the central annulus of stimulus locations compared with that for the peripheral annulus thereby determining the influence of stimulus eccentricity on any alteration in sensitivity. (3) Change between Visits 1 and 5 in the number and magnitude of the Pattern Deviation (PD) probability levels associated with any alteration in sensitivity. Results: The MD,SF,and PSD each improved over the 5 examinations (each at P< 0.001). The improvement in pMS between Visits 1 and 5 was greater for the peripheral annulus than for the central annulus by approximately two fold for the patients with OAG. Considerable variation was present between patients,within and between groups,in the number of locations exhibiting an improving sensitivity between Visits 1 and 5 by 1 or more PD probability levels. Conclusions: Care should be taken to ensure that,during the initial examinations,apparent field loss with SWAP in patients exhibiting a normal field by SAP is not the result of inexperience in SWAP. Apparently deeper or wider field loss in the initial examinations with SWAP compared with that exhibited by SAP in OAG also may arise from inexperience in SWAP.

TOPOGRAPHIC CONCORDANCE BETWEEN SHORT WAVE AUTOMATED PEREMETRY AND FREQUENCY DOUBLING TECHNOLO-GY IN OCULAR HYPERTENSION

Purpose: To evaluate the topographic concordance between sensibility values of short wave automated perimetry (SWAP) and frequency doubling technology (FDT) in ocular hypertension. Methods: 22 eyes of 22 patients diagnosed of ocular hypertension underwent SWAP (24-2 test, Humphrey analyser) and FDT (C-20 threshold test). According the 17 points examined

CORRELATION OF SHORT-WAVELENGTH AUTOMATED PEREMETRY INDICES TO OPTIC DISC TOPOGRAPHY

Purpose: To correlate structural parameters of the optic nerve head and global indices of short-wavelength automated perimetry (SWAP) in ocular hypertensives. Methods: The study included 195 eyes with ocular hypertension (IOP>21 mmHg, normal conventional automated perimetry). Short-wavelength automated perimetry was performed (full-threshold, 24-2). The optic

黑种人和白种人健康眼之间视功能和视神经结构的差别

目的：观察黑种人和白种人健康眼之间视功能、视盘地形和视网膜神经纤维层（RNFL）厚度的差别。 方法：采用标准自动视野计检查、短波长自动视野计检查及倍频技术视野计检查评价50位黑种人和50位白种人健康眼视功能。采用Heidelberg视网膜地形图和光学相干断层扫描仪测量视盘形态和RNFL厚度。 结果：两组平均标准自动视野检查平均偏差均在正常范围内。黑种人倍频技术视野检查的平均偏差比白种人较差（均数±标准差，-1．8±3．2dB对-0．1±2．4dB）。采用Heidelberg视网膜地形图测得黑种人视盘面积较白种人大（均数±标准差。2．1±0．4mm^2对1．7±0.4mm^2）。光学相干断层扫描仪测得的黑种人RNFL较白种人更厚。其中上方厚16．91pm。下方厚10．10μm。而且黑种人的眼内压较白种人略高（均数±标准差,16．5±2．5mmHg对15．2±3．2mmHg），中央角膜较薄（均数±标准差，540．5±43．2μm对560．9±35．5μm）。在平均RNFL厚度、所有测试的模式标准偏差或短波长自动视野检查的变量中均未见人种差别。结论：在视功能方面发现有微小的人种差别。但在健康眼。人种显著影响视盘形态及上方和下方RNFL的厚度测量。所观察到的眼内压具有人种差别，在校正中央角膜厚度之后。理论上也是升高的。需要前瞻性研究来进一步观察这些结果。