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Correction of Presbyopia by Monocular Bi-Aspheric Ablation Profile
Published on: September 20, 2024
Corneal spherical aberration of eyes with cataract in a Japanese population
Masataka Shimozono1, Akiyoshi Uemura, Yasuhiko Hirami
1Dept of Ophthalmology, Kobe City Medical Center General Hospital, 4-6, Minatojima-Nakamachi, Chuo-ku, Kobe 650-0046, Japan. shimozono-tky@umin.ac.jp
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 Z04) 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 microm (range: -0.103 to 0.497 microm). A significant negative correlation was found between axial length and corneal spherical aberration (r =/-0.135, P=.036).
Conclusions:
Corneal 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.
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