The Lens Opacity Meter 701 (Interzeag, Switzerland) is a recently developed instrument for assessing cataract. It measures the degree of scatter of a red light beam by the lens. Fifty patients prior to cataract surgery had measurements made before and after dilatation of the pupil. Inconsistent results were found at pupil diameters of less than 4 mm. It is postulated that this was due to absorption of scattered light by the iris.
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机译：Lens Opacity Meter 701（瑞士Interzeag）是一种最新开发的评估白内障的仪器。它测量镜头对红色光束的散射程度。白内障手术前有五十名患者在瞳孔扩张前后进行了测量。在小于4 mm的瞳孔直径下发现不一致的结果。据推测，这是由于虹膜吸收了散射光。
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