Effect of spherical aberration on visual function under photopic and mesopic conditions after cataract surgery

Abstract

Postoperative spherical aberration had a significant effect on visual function under photopic and mesopic conditions. This result indicates that reduced postoperative spherical aberration improves postoperative visual function under photopic and mesopic conditions.

Effect of intraocular lens asphericity on vertical coma aberration

“…Discussion of the pros and cons becomes questionable in light of the fact that pupil size normally decreases with age. 35 Yamaguchi et al 36 found a mean mesopic pupil size of 3.60 G 0.57 mm and a mean photopic size of 2.9 G 0.50 mm in a pseudophakic population with a mean age of 68 G 9.6 years. Age-related cataract remains the main indication for cataract surgery; hence, the practical benefits of aspheric IOLs are debatable.…”

Fellow-eye comparison of 2 aspheric microincision intraocular lenses and effect of asphericity on visual performance

“…22 Recently, Yamaguchi et al 23 found a mean mesopic pupil size of 3.60 G 0.57 mm and a mean photopic size of 2.9 G 0.50 mm in CDVA Z corrected distance visual acuity; DCNVA Z distance-corrected near visual acuity; IOL Z intraocular lens *One-way analysis of variance † Derived from the difference between the maximum and minimum value on the aberrometer refraction map (software version 3.1) z Statistically significant a pseudophakic population with a mean age of 68 G 9.6 years. Age-related cataract remains the main indication for cataract surgery; hence, the benefits of aspheric IOLs should be carefully balanced against their potential disadvantages because a reduction in spherical aberration and vertical coma may affect the depth of focus.…”

Comparison of visual performance with an aspheric intraocular lens and a spherical intraocular lens

“…The latter may be because the spherical aberration was not fully corrected; this is supported by the fact that postoperative visual function has been reported as being negatively correlated with spherical aberration under natural pupil diameter conditions. 37 Decreased depth of focus may be an issue with aspheric IOLs, and it remains to be seen whether corneal spherical aberration should be fully, partially, or neutrally corrected to obtain the maximum visual benefit. 17 The photorefractor in our study has been reported using the "dynamic scan" for pupil size and accommodation, and the mean intraindividual variation was less than 0.12 D for accommodation data.…”