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JRS- Journal of Refractive Surgery
JRS, Journal of Refractive Surgery

Comparison of Objective and Subjective Visual Outcomes Between Pentafocal and Trifocal Diffractive Intraocular Lenses

Carlo Bellucci, MD, FEBO; Paolo Mora, MD, PhD; Salvatore Antonio Tedesco, MD; Stefano Gandolfi, MD; Roberto Bellucci, MD, FEBO, FEBOS-CR
(2004)

A clinical study comparing the new Intensity pentafocal IOL and a trifocal IOL showed that the Intensity IOL provides superior intermediate vision and a flatter defocus curve, with comparable distance and near vision. Patients reported fewer optical disturbances, such as glare and halos, with the Intensity IOL. Further research will clarify the specific benefits of the pentafocal design.

ABSTRACT

PURPOSE

To compare the clinical and aberrometric outcomes obtained with a new diffractive pentafocal intraocular lens (IOL) and a diffractive trifocal IOL.

METHODS

Patients bilaterally implanted with the pentafocal Intensity SeeLens IOL (Hanita Lenses) (n = 30) and the trifocal FineVision POD F IOL (PhysIOL) (n = 30) during cataract surgery were studied after 1 month for refraction, visual acuity, defocus curve, contrast sensitivity, Hartmann-Shack aberration, and double-pass aberration. The Quality of Vision (QoV) questionnaire was used to evaluate visual comfort.

RESULTS

Distance and near visual acuities were similar with the two IOLs, but distance-corrected intermediate visual acuity was better with the Intensity IOLs (0.03 ± 0.04 vs 0.11 ± 0.04 logMAR in the FineVision eyes, P < .01). The difference between objective and subjective refraction was more myopic for the Intensity IOL (-1.15 vs -0.29 diopters [D]). The defocus curve was flatter with the Intensity IOL. Contrast sensitivity was similar in both IOLs. Hartmann-Shack aberration and double-pass aberration were similar, but the modulation transfer function cut-off value was worse with the Intensity IOL: 11.6 ± 2.7 vs 15.3 ± 4.9 (P < .01). QoV scores were better with the Intensity IOL, in particular for glare, halos, and starburst.

CONCLUSIONS

In this comparative series, the pentafocal Intensity IOL provided better intermediate vision and better defocus curve than the FineVision IOL, with comparable distance and near vision. The optical disturbances as reported by the patients were higher with the FineVision IOL. Additional studies will better define the aberration profile obtained with the pentafocal IOL.

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