Rohrschneider K, Burk R O, Völcker H E
Universitäts-Augenklinik, Heidelberg, Federal Republic of Germany.
Ger J Ophthalmol. 1992;1(3-4):188-92.
Spontaneous venous pulsation can be observed at the site of entry of retinal veins into the physiological cup of the optic disc. Although it has been speculated that spontaneous vessel pulsation is related to primary open-angle glaucoma, no evaluation has been done on the depth position of such a pulsation inside the cup and its relationship to the intraocular pressure. Using laser scanning tomography, we measured the depth position of the maximal spontaneous vessel pulsation inside the optic cup in 24 discs of 24 patients, including 15 ocular hypertensives and 9 controls. The two groups did not differ significantly in age or refraction. The depth position of the maximal venous collapse, however, showed a significant difference between the two groups (p < 0.005), the mean value being 301 +/- 95 microns beyond the first retinal vessel reflection in the control-group eyes and 507 +/- 193 microns in the ocular hypertensive discs. The location of the depth position of the maximal venous collapse within the excavation could be a parameter that indicates the individual pressure tolerance of the ocular tissues.
在视网膜静脉进入视盘生理杯的部位可观察到自发性静脉搏动。尽管有人推测自发性血管搏动与原发性开角型青光眼有关，但尚未对杯内这种搏动的深度位置及其与眼压的关系进行评估。我们使用激光扫描断层扫描技术，测量了24例患者24个视盘内视杯内最大自发性血管搏动的深度位置，其中包括15例高眼压症患者和9例对照者。两组在年龄或屈光状态上无显著差异。然而，最大静脉塌陷的深度位置在两组之间存在显著差异（p < 0.005），对照组眼睛中该值在第一个视网膜血管反射之外的平均值为301 +/- 95微米，高眼压症视盘中为507 +/- 193微米。视盘凹陷内最大静脉塌陷深度位置的所在可能是一个表明眼组织个体压力耐受性的参数。
