Sato Y, Tomita G, Onda E, Goto Y, Oguri A, Kitazawa Y
Department of Ophthalmology, Gifu University School of Medicine, Japan.
Nippon Ganka Gakkai Zasshi. 1998 Aug;102(8):502-8.
In order to evaluate the association between the watershed zone and glaucomatous optic damage, we performed indocyanine green fluorescence angiography with a scanning laser ophthalmoscope in 54 eyes of 27 patients with normal tension glaucoma. The visual field indices were measured with a Humphrey Field Analyzer. We identified 8 eyes (14.8%) of 7 patients with a watershed zone not including the optic nerve head (type I), 32 eyes (59.3%) of 20 patients with the zone partially including the optic nerve head (type II), and 14 eyes (26.0%) of 10 patients with the zone including the optic nerve head (type III). Of the total of 27 patients, 10 patients (37.0%) had different types in each eye. In these patients, the mean deviation (MD) of visual field indices was worse in the eye with the watershed zone which included a larger part of the optic disc than in the contralateral eye (p < 0.05). Conversely, the eye with worse MD than the contralateral eye had a watershed zone which included a larger part of the optic disc than the other eye (p < 0.05). The location of watershed zone appeared to influence the progression of the visual field defect.
为了评估分水岭区与青光眼性视神经损害之间的关联，我们使用扫描激光检眼镜对27例正常眼压性青光眼患者的54只眼进行了吲哚菁绿荧光血管造影。使用 Humphrey 视野分析仪测量视野指数。我们确定了7例患者的8只眼（14.8%）分水岭区不包括视神经乳头（I型），20例患者的32只眼（59.3%）分水岭区部分包括视神经乳头（II型），以及10例患者的14只眼（26.0%）分水岭区包括视神经乳头（III型）。在27例患者中，10例患者（37.0%）每只眼的类型不同。在这些患者中，分水岭区包括视盘较大部分的眼的视野指数平均偏差（MD）比健侧眼更差（p < 0.05）。相反，MD比健侧眼更差的眼的分水岭区包括视盘的部分比另一只眼更大（p < 0.05）。分水岭区的位置似乎影响视野缺损的进展。
