To test the performance of a new monofocal intraocular lens, intended to extend depth of focus (Tecnis® Eyhance, ICB00) (ICB-IOL), in comparison to a timetested standard monofocal IOL (Tecnis® 1-piece, ZCB00) (ZCB-IOL) of same platform and material. MethodsAssessment of the optical performance of the two IOLs was made in-vitro using an optical test bench with a model eye. The spherical aberration (SA), modulation transfer function (MTF) and the area under the MTF (MTFa) were obtained for pupil sizes ranging from 2.0mm to 5.0mm. Through-focus MTFa curves between -3.0D to +1.0D were obtained with three pupils (2.0mm, 3.0mm and 4.5 mm). Halo formation was also assessed for both lenses. ResultsThe ICB-IOL had slightly worse optical quality at its best focus (i.e., lower MTF scores at distance vision) and more negative SA than the ZCB-IOL for pupils ranging from 2.0mm up to 3.0mm.The maximum of the through-focus MTFa curve of the ICB-IOL with a 2.0mm pupil, shifted to myopic defocus of -0.50 D.For larger pupils (≥3.5 mm), there were no differences of SA, MTF scores and halo energy between the two lenses. ConclusionsThe new ICB-IOL is a modified monofocal lens with 0.50D of additional power in its central 2mm zone and more negative SA values, which induces a myopic shift of the maximum of optical quality and could improve intermediate vision.For pupils larger than 3.5mm, there were no differences between both IOLs. 3The new ICB-IOL design would produce photic phenomena comparable to a standard IOL.

Differences in the design of the diffractive IOLs translate into differences in optical quality at their foci, through-focus performance, and halo features, which can offer further information to surgeons when selecting which IOL to implant.

The present results, which reflect IOL characteristics in optics, profile, and add power, may contribute to help surgeons decide on the type of IOL most suitable for each patient, especially those with high visual demands at near and intermediate distances.

The present results, which reflect intraocular lens (IOL) characteristics in optics, profile, and add power, may contribute to help surgeons decide on the type of IOL most suitable for each patient by taking into consideration the individual needs for critical distance and near vision, both in terms of visual acuity and contrast sensitivity.

Conflict of Interest: Miguel A. Gil declares that he has no conflict of interest.Consuelo Varón declares that she has no conflict of interest. Genis Cardona declares that he has no conflict of interest. José A. Buil declares that he has no conflict of interest.