Visual Performance of Tecnis ZM900 Diffractive Multifocal IOL after 2500 Implants: A 3-Year Followup

Area of Science:

• Ophthalmology
• Biomedical Engineering
• Retinal Science

Background:

• Cataract surgery is a common procedure to restore vision.
• Multifocal intraocular lenses (IOLs) aim to provide clear vision at multiple distances.
• The Tecnis ZM900 is a new diffractive multifocal IOL designed for improved visual outcomes.

Purpose of the Study:

• To evaluate the visual performance of the Tecnis ZM900 multifocal IOL.
• To assess patient-reported outcomes, including photic phenomena and satisfaction.
• To determine the effectiveness of this IOL in eyes undergoing phacoemulsification.

Main Methods:

• Retrospective analysis of 2,500 eyes implanted with the Tecnis ZM900 IOL.
• Minimum 3-month follow-up period post-surgery.
• Assessment of uncorrected visual acuities (distance, intermediate, near) and subjective patient questionnaires.

Main Results:

• 85% of eyes achieved uncorrected distance visual acuity (UDVA) of 20/30 or better.
• 93.7% achieved J1 near visual acuity; 98% achieved J2 or better.
• 65% achieved J4 intermediate visual acuity; 82.8% achieved J5 or better.
• Severe glare and halos reported by only 6.1% and 2.12% of patients, respectively.
• 97% reported spectacle independence; 88% were satisfied and would choose the IOL again.

Conclusions:

• The Tecnis ZM900 diffractive multifocal IOL delivers excellent visual outcomes across near, intermediate, and distance ranges.
• High rates of spectacle independence and patient satisfaction, coupled with low photic phenomena, make it a strong option for cataract patients.
• The IOL demonstrates a favorable safety profile, with only 5% requiring enhancement and no lens exchanges.