Toric Trifocal Toric IOLs: Outcomes
Purpose
Preliminary prospective evaluation of refractive and visual outcomes following implantation of a toric trifocal diffractive lens implant, the AT Lisa trifocal toric following cataract surgery or refractive lens exchange.
Methods
The data of 60 consecutive eyes undergoing bilateral implantation of the AT Lisa trifocal toric lens implant (Zeiss) following femtosecond laser (Victus laser, Bausch and Lomb-Technolas) will be analyzed. UDVA, CDVA, UNVA and uncorrected intermediate vision at 60 and 80cm) and refractive outcomes will be collected and contrast sensitivity testing will be performed at 3 months follow-up.
Results
One month data on 23 eyes (12 patients) of mean age of 62 years (23 to 84). No surgical complications were reported. All toric lenses were stable and within 5 degrees of intended axis. The mean spherical equivalent was -3.78 ± 4.87 D and mean astigmatism -2.59 D ± 1.42 D° (range 0.75 to 6.00). Spherical equivalent at 1M reduced to -0.23 D ± 0.26 D° (range 0.13 to 0.75) and astigmatism was -0.31 D ± 0.26 D°(range 0.00 to 1.00). 91% eyes had monocular UDVA of 20/25 or better and 75% were 20/20. Monocular UNVA at 40cm: 20/30 or better 96%, 20/25 or better 78% and 20/20 25%. Binocularly vision was 20/25 or better 100% patients. Monocular UIVA at 60cm was 20/30 or better: 96%, 20/25 or better 83%.
Conclusion
The AT Lisa diffractive trifocal toric lens implant provides excellent refractive outcomes with highly predictable and reliable reduction in cylinder as well as good visual outcomes at distance, intermediate and near. The lens is also very stable once implanted with no evidence of rotation.