Influence of intraocular lens optical design on high-order aberrations.
OBJECTIVE
To compare differences in high-order aberrations (HOAs) between 2 intraocular lens (IOL) optical designs.


METHODS
Department of Ophthalmology, Nara Medical University, Nara, Japan.


METHODS
Sixty eyes that had uncomplicated phacoemulsification and IOL implantation were assigned to 1 of 2 groups based on the type of IOL optical design: more posteriorly curved biconvex shape (AcrySof MA30BA, Alcon) (n=30 eyes) or more anteriorly curved biconvex shape (AcrySof MA30AC) (n=30 eyes). All patients had best corrected visual acuity better than 20/25. High-order aberrations were measured using a Hartmann-Shack aberrometer at 4.0 mm and 6.0 mm wavefront aperture diameters.


RESULTS
At 4.0 mm aperture diameters, there were no differences between the 2 groups in HOAs (P>.05, Mann-Whitney U test) in the cornea and the whole eye. At 6.0 mm aperture diameters, MA30AC eyes had a smaller amount of spherical-like aberrations (P=.043) than MA30BA eyes; however, there were no significant differences between the 2 groups in coma-like aberrations and total aberrations in the whole eye (P>.05). At 6.0 mm aperture diameters, there were no differences between the 2 groups HOAs in the cornea. (P>.05).


CONCLUSIONS
The optical design of the spherical IOL influenced the spherical-like aberrations in the whole eye. This may reduce retinal image quality.
Department of Ophthalmology, Nara Medical University, Nara 634-8522, Japan. ftaketan@naramed-u.ac.jp
Futoshi
F
Taketani
Eiichi
E
Yukawa
Toshiaki
T
Yoshii
Yuuko
Y
Sugie
Yoshiaki
Y
Hara
D000180:Acrylic Resins; D000368:Aged; D006801:Humans; D019654:Lens Implantation, Intraocular; D007910:Lenses, Intraocular; D018918:Phacoemulsification; D011446:Prospective Studies; D011474:Prosthesis Design; D012029:Refraction, Ocular; D012030:Refractive Errors / Q000209:etiology*; D014792:Visual Acuity
D000180:Acrylic Resins