Wood J M, Wild J M, Crews S J
Department of Vision Sciences, Aston University, Birmingham, England.
Graefes Arch Clin Exp Ophthalmol. 1987;225(5):369-73. doi: 10.1007/BF02153408.
The influence of intraocular light scatter on the perimetric sensitivity profile of the normal eye was investigated using a series of light-scattering cells containing 0.01%, 0.02% and 0.025% concentrations of 500 nm diameter latex beads. The degree of induced intraocular light scatter was quantified by measuring contrast sensitivity using the Nicolet CS2000 system in the presence and absence of both wide- and narrow-angle glare light. Perimetric sensitivity out to an eccentricity of 30 degrees was assessed, using the Octopus 201 and the Dicon AP3000 automated perimeters, with the three light-scatter cells and in the cell-free control condition. The results for both functions were expressed as the difference between the control response and that recorded under the particular experimental condition. Perimetric attenuation increased with increase in intraocular light scatter; the extent of the attenuation varied with stimulus type, bowl luminance and eccentricity.
使用一系列含有直径500纳米乳胶珠浓度分别为0.01%、0.02%和0.025%的光散射细胞，研究了眼内光散射对正常眼睛视野敏感度分布的影响。通过在存在和不存在广角和窄角眩光的情况下，使用Nicolet CS2000系统测量对比敏感度，对诱导的眼内光散射程度进行量化。使用Octopus 201和Dicon AP3000自动视野计，在三种光散射细胞条件下以及无细胞对照条件下，评估了偏心度达30度的视野敏感度。两种功能的结果均表示为对照反应与特定实验条件下记录的反应之间的差异。视野衰减随眼内光散射的增加而增加；衰减程度随刺激类型、视杯亮度和偏心度而变化。
