Stave J, Guthoff R
Ophthalmo-Elektrophysiologische Abteilung, Universitäts-Augenklinik, Rostock.
Ophthalmologe. 1995 Apr;92(2):191-4.
In patients with a reduction in visual function because of optic nerve neuritis, light sensitivity is tested to detect differences between the right and left eye in combination with the swinging flashlight test and visual evoked potential (VEP). A binocular Zeiss microscope was modified to use integrated photometer-controlled binocular stimulus fields and a central light system for fixation and variation of the contrast (background illumination). For exact binocular measurements of light sensitivity on both eyes, electronically controlled test fields (visual angle 5 degrees-20 degrees) guarantees only macular or overfoveolar stimulation. In addition, splitting the light for each stimulus field from only one halogen lamp guarantees wave-length-independent testing. Patients with various retinal diseases and neuritis nervi optici pathology were examined using pattern VEP, testing of the absolute lower threshold of light sensitivity, and binocular comparison over the range of luminous density. This binocular optical photometer system allowed minimal differences to be identified in the present visual function and after the eye had recovered from optic nerve neuritis.
对于因视神经炎导致视力功能下降的患者，结合摆动手电筒试验和视觉诱发电位（VEP）来测试光敏感度，以检测左右眼之间的差异。对双目蔡司显微镜进行了改装，使其使用集成光度计控制的双目刺激视野以及用于注视和对比度变化（背景照明）的中央照明系统。为了精确测量双眼的光敏感度，电子控制的测试视野（视角5度 - 20度）仅保证黄斑或黄斑中心凹上方的刺激。此外，仅从一个卤素灯为每个刺激视野分光可确保进行与波长无关的测试。使用图形VEP、光敏感度绝对下限测试以及在发光密度范围内的双目比较，对患有各种视网膜疾病和视神经炎病理的患者进行了检查。这种双目光学光度计系统能够识别当前视觉功能以及眼睛从视神经炎恢复后的最小差异。
