Niesel P, Ramel C, Weidmann B O
Klin Monbl Augenheilkd. 1978 Apr;172(4):477-80.
The stray light effect on the visual field was quantitatively studied in normal subjects under experimental conditions. Stray light comparable to that caused by lens opacities was produced by means of selective occluders or diascleral illumination. The results derived from this model were compared with the statistical evaluation of the visual fields of 123 eyes with glaucoma followed for a minimum of 10 years. As expected lens opacities resulted in a concentric constriction of the peripheral fields and a loss of the inner isopters. The light difference sensitivity as determined by static perimetry was generally reduced preferentially in the central fields. These calculations provide a measure to anticipate the degree of lens opacifications from a depressed visual without knowledge of the visual acuity.
在实验条件下，对正常受试者视野中的杂散光效应进行了定量研究。通过选择性遮挡器或巩膜外照明产生与晶状体混浊所引起的杂散光相当的杂散光。将该模型得到的结果与123只青光眼患眼至少随访10年的视野统计评估结果进行了比较。正如预期的那样，晶状体混浊导致周边视野向心性收缩和内部等视线丧失。通过静态视野检查确定的光差异敏感度通常在中央视野中优先降低。这些计算提供了一种方法，可在不了解视力的情况下，根据视野降低情况预测晶状体混浊的程度。
