Generation of third-order spherical and coma aberrations by use of radially symmetrical fourth-order lenses

摘要

We have extended the method of Alvarez [J. Am. Optom. Assoc. 49, 24 (1978)] to generate a variable magnitude of third-order spherical and/or coma aberration by using a combination of fourth-order plates with a magnification system. The technique, based on the crossed-cylinder aberroscope, is used to measure the wave-front aberration generated by the plates. The method has been applied to correct the third-order spherical aberration generated by an artificial eye as well as the coma produced by a progressive addition ophthalmic lens. The simplicity of the method and its relatively low cost make it attractive for partial correction of the aberrations of the eye. # 1998 Optical Society of America [S0740-3232(98)03709-0] OCIS codes: 220.1000, 220.1010, 220.4830, 220.0220, 170.4460, 170.4470.