抄録
Contact lens has much convenience unlike glasses lens. Therefore, it has been used a lot so far after the safety of the contact lens was secured. However, the standard of the contact lens is only geometric parameters of the lens shape. Recently, measurement of contact lens aberration has begun to improve the quality of vision. This report describes wavefront measurement of contact lenses by point diffraction interferometer (PDI). In the experiment, a PDI experimental device for wavefront measurement of contact lens is proposed and the method for alignment of the optical system is considered by error analysis. Next, wavefronts of hard contact lens and soft contact lens are measured. As a result, the contact lenses used for experiments are the same maker, but it is found that the wavefronts of lenses in the same diopter power are different.
