Comparative Patient Study: Lentis Quantum Vs. Acunex Quantum – Is There A Difference In Visual Performance And Subjective Quality Of Vision

To compare the clinical and subjective visual performance of the Lentis Quantum (hydrophilic, clear) and the Acunex Quantum (hydrophobic, blue-light filtering) intraocular lenses (IOLs) in a paired-eye patient study.

Prospective, single-center, paired-eye comparative study performed at a high-volume refractive cataract surgery center. 

Ten patients (20 eyes) undergoing bilateral cataract surgery received the Lentis Quantum in one eye and the Acunex Quantum in the fellow eye. At 3 months postoperatively, patients were evaluated monocularly and binocularly. Objective assessments included corrected distance visual acuity (CDVA), corrected intermediate visual acuity (CIVA), corrected near visual acuity (CNVA), defocus curves (mono- and binocular), and contrast sensitivity testing. Subjective evaluation addressed perceived differences in visual quality, specifically color perception and contrast, when comparing the two eyes.

Both IOLs provided similar visual acuity across all tested distances. Defocus curves revealed comparable depth of focus in both groups. Contrast sensitivity was slightly increased in the eye with the blue-light filtering IOL in some patients. Subjectively, patients did not report any differences in color and contrast perception between the two eyes. The differences were minimal under binocular conditions and did not affect overall satisfaction.

This intraindividual comparison highlights the clinical equivalence of the Lentis Quantum and Acunex Quantum in terms of visual acuity and contrast sensitivity. However, differences in material and chromophore design may lead to slight variations in color and contrast perception. These findings underscore the value of tailored IOL selection based on patient-specific visual preferences and sensitivities.