Hospital Oftalmológico de Brasília, Brasília.
Hospital de Olhos Leiria de Andrade, Fortaleza.
J Glaucoma. 2020 Oct;29(10):964-969. doi: 10.1097/IJG.0000000000001595.
The current study showed that glaucomatous eyes from patients with central visual field defects presented less negative disc-fovea angle compared with patients with peripheral defects.
The purpose of this study was to investigate the relationship between disc-fovea angle and visual field defect location in patients with glaucoma.
This was a cross-sectional study including glaucoma patients divided into isolated central and isolated peripheral scotoma groups. The main outcome measure was disc-fovea angle measurement between groups. Secondary outcomes included disc-fovea distance, vertical disc diameter, and fovea vertical deviation.
We included 50 glaucoma patients (50 eyes; 27 with central scotoma and 23 with peripheral scotoma). Mean deviation from visual fields was -3.05±1.67 and -2.95±1.49 dB (P=0.829) (central and peripheral scotoma groups, respectively). We found that eyes in the central group had lower values of disc-fovea angle (-5.85±2.67 vs. -7.97±2.26 degrees, P=0.004), shorter disc-fovea distance (4.38±0.70 vs. 4.98±0.78 mm, P=0.006), and shorter fovea vertical deviation (-0.43±0.19 vs. -0.68±0.22 mm, P<0.001) compared with eyes in the peripheral group.
This study showed an association between disc-fovea angle and central visual field defects in patients with glaucoma. Our findings suggest that eyes with a less negative disc-fovea angle should undergo a more careful investigation of the central visual field, even at early stages of the disease.
本研究表明，与周边视野缺损患者相比，伴有中心视野缺损的青光眼患者的盘-黄斑角更小。
本研究旨在探讨青光眼患者视盘-黄斑角与视野缺损位置的关系。
这是一项横断面研究，纳入了分为孤立性中心和孤立性周边暗点组的青光眼患者。主要观察指标为两组间盘-黄斑角测量值。次要观察指标包括盘-黄斑距离、垂直视盘直径和黄斑垂直偏斜。
共纳入 50 例（50 只眼；27 例中心暗点，23 例周边暗点）青光眼患者。视野平均缺损值分别为-3.05±1.67 和-2.95±1.49 dB（P=0.829）（中心和周边暗点组）。我们发现，中央组的盘-黄斑角值较低（-5.85±2.67 比-7.97±2.26 度，P=0.004），盘-黄斑距离较短（4.38±0.70 比 4.98±0.78 毫米，P=0.006），黄斑垂直偏斜较短（-0.43±0.19 比-0.68±0.22 毫米，P<0.001）。
本研究表明青光眼患者的盘-黄斑角与中心视野缺损之间存在相关性。我们的研究结果表明，盘-黄斑角较小的眼睛应更仔细地检查中心视野，即使在疾病早期也是如此。
