The corneal spherical aberration distribution was a normal Gaussian curve. However, the mean value was significantly different when the sex of the patient was considered. Corneal keratometry readings could not be reliably used to predict corneal spherical aberration.

The Tecnis IOL has a negative spherical aberration of -0.27 microm. Targeting for a postoperative mean residual spherical aberration of approximately +0.10 microm by selecting patients according to their preoperative spherical aberration resulted in better contrast sensitivity.

Although only a few reports of cases in which glistening and SSNG have progressed to the level of decreased visual function have been published, the likelihood is that this phenomena will increase as the severity and incidence of these inclusions have been shown to increase with time. Appropriate evaluations of visual function in such patients are needed and consideration should be given to IOL exchange in symptomatic patients.

Single-optic accommodating IOLs did not offer a significant advantage in near visual acuity over mini-monovision with a monofocal (nonaccommodating) IOL.