Millodot M
Albrecht Von Graefes Arch Klin Exp Ophthalmol. 1976 Mar 3;198(3):235-43. doi: 10.1007/BF00410716.
The axial chromatic aberration of the eye was measured in 58 persons varying from 10 to 80 years of age. It was found that the chromatic aberration diminished significantly after the onset of presbyopia. It is suggested that this decrease in axial chromatic aberration may be due to increase in the index of refraction of the vitreous thereby producing a negative optical surface in the eye which more or less cancels the chromatic aberration of the cornea and anterior surface of the lens. This supposition is supported by measurements of chromatic aberration made on 10 aphakic patients. It is also observed that at near, older eyes who exhibit very little chromatic aberration, cannot make use of this aberration to spare some of the required accommodation (simulated by ophthalmic lenses in older eyes) as is the case in younger eyes.
对58名年龄在10岁至80岁之间的人测量了眼睛的轴向色差。结果发现，老花眼出现后，色差显著减小。有人认为，轴向色差的这种降低可能是由于玻璃体折射率增加，从而在眼睛中产生一个负光学表面，该表面或多或少抵消了角膜和晶状体前表面的色差。对10名无晶状体患者进行的色差测量支持了这一假设。还观察到，在近距离时，表现出很少色差的老年眼睛无法像年轻眼睛那样利用这种色差来节省一些所需的调节（在老年眼睛中由眼镜模拟）。
