The next lens most likely to gain FDA approval is the Synchrony dual-optic accommodating IOL (Visiogen Inc., Irvine, CA).Presbyopia still remains the last frontier of refractive surgery.Uncorrected near visual acuity was 20/40 or better in all eyes.
The recently introduced Tecnis Multifocal IOL (Abbott Medical Optics Inc., Santa Ana, CA) has a diffractive optic, like that of the Acry Sof Restor IOL (Alcon Laboratories, Inc., Fort Worth, TX).
The approval of toric multifocal lenses, such as the Acri.
Lisa (Carl Zeiss Meditec AG, Jena, Germany),2 should not be far off, and these IOLs more accurately correct preoperative astigmatism than limbal relaxing incisions.
Multifocal patients often complain of seeing glare and halos, especially at night, in the first few months after surgery.
As a result, considerable time and money are being invested in the development of IOLs that reduce or eliminate the problems of current multifocals.