Koch D D, Samuelson S W, Haft E A, Merin L M
Cullen Eye Institute, Baylor College of Medicine, Houston, TX.
Ophthalmology. 1991 Jul;98(7):1030-5.
The authors measured the pupil sizes of 132 subjects and correlated these to selected designs of annular bifocal intraocular lenses (IOLs). Pupils were measured under five different testing conditions that simulated representative visual tasks: (1) driving at night, (2) reading in dim illumination, (3) reading in bright illumination, (4) distant viewing in indirect sunlight, and (5) distant viewing in direct sunlight. Pupil size diminished with age and with increased illumination. Because of accommodative pupillary constriction, there was little difference in pupil size measured while reading in bright indoor illumination and distant viewing in indirect sunlight. Evaluating a patient's pupil size permits the individualized estimation of the eye's bifocal function following implantation of each of the annular-design bifocal IOLs.
作者测量了132名受试者的瞳孔大小，并将其与环形双焦点人工晶状体（IOL）的选定设计相关联。在模拟代表性视觉任务的五种不同测试条件下测量瞳孔：（1）夜间驾驶，（2）在昏暗照明下阅读，（3）在明亮照明下阅读，（4）在间接阳光下远距离观看，以及（5）在直射阳光下远距离观看。瞳孔大小随年龄增长和照明增加而减小。由于调节性瞳孔收缩，在明亮室内照明下阅读和在间接阳光下远距离观看时测量的瞳孔大小几乎没有差异。评估患者的瞳孔大小可以在植入每种环形设计的双焦点人工晶状体后对眼睛的双焦点功能进行个体化估计。
