Corneal Spherical Aberration of Eyes With Cataract in a Japanese Population

PURPOSE: To investigate the distribution of corneal spherical aberration in Japanese eyes with cataract for implantation of aspheric intraocular lenses (IOLs). METHODS: Corneal spherical aberration (Zernike coefficient Z(4)(0)) in the central 6-mm zone was measured with a wavefront analyzer (KR9000PW, Topcon) in 257 eyes of 168 Japanese patients with cataract. Axial length was also measured for each eye RESULTS: Mean corneal spherical aberration was 0.203 +/- 0.100 mu m (range: -0.103 to 0.497 mu m). A significant negative correlation was found between axial length and corneal spherical aberration (r=-0.135, P=.036). CONCLUSIONS: Comeal spherical aberration varied among cataract patients and correlated with axial length. Japanese patients showed a relatively smaller corneal spherical aberration than previous studies of Caucasians. Preoperative measurement of wavefront aberrations is thus important in using aspheric IOLs. [J Refract Surg. 2010:26(6):457-459.] doi:10.3928/1081597X-20100212-03