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Related Experiment Video

Updated: Mar 30, 2026

Scanning Light Scattering Profiler SLPS Based Methodology to Quantitatively Evaluate Forward and Backward Light Scattering from Intraocular Lenses
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Straylight Measurements in Two Different Apodized Diffractive Multifocal Intraocular Lenses.

Ruth Lapid-Gortzak, Grzegorz Labuz, Ivanka J van der Meulen

    Journal of Refractive Surgery (Thorofare, N.J. : 1995)
    |November 7, 2015
    PubMed
    Summary
    This summary is machine-generated.

    The Seelens MF intraocular lens (IOL) demonstrated reduced straylight compared to the SN6AD1 IOL. Both multifocal IOLs provided similar visual acuity and refractive outcomes, suggesting comparable visual performance.

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    Area of Science:

    • Ophthalmology
    • Biomedical Engineering
    • Optics

    Background:

    • Intraocular lenses (IOLs) are crucial for vision restoration after cataract surgery.
    • Multifocal IOLs aim to provide clear vision at multiple distances.
    • Straylight is a significant factor affecting visual quality, especially in pseudophakic eyes.

    Purpose of the Study:

    • To compare straylight levels between hydrophilic Seelens MF and hydrophobic SN6AD1 multifocal IOLs.
    • To evaluate visual acuity and refractive outcomes following implantation of these two IOL models.

    Main Methods:

    • Prospective cohort study design.
    • Straylight measurements using C-Quant device 3 months post-implantation.
    • Comparison of visual acuity (CDVA) and refractive error between IOL groups.

    Main Results:

    • The Seelens MF IOL group (84 eyes) exhibited significantly lower straylight (0.08 log(s) difference, P=.01) compared to the SN6AD1 IOL group (79 eyes).
    • Both IOLs achieved comparable corrected distance visual acuity (CDVA) and mean postoperative refractive outcomes.
    • Seelens MF IOL: CDVA logMAR -0.03 ± 0.06, Refraction +0.01 ± 0.43 D.
    • SN6AD1 IOL: CDVA logMAR -0.02 ± 0.08, Refraction +0.06 ± 0.35 D.

    Conclusions:

    • The Seelens MF IOL demonstrated a statistically significant reduction in straylight compared to the SN6AD1 IOL.
    • Despite the straylight difference, both multifocal IOLs yielded equivalent visual acuity and refractive results.
    • Further research is warranted to elucidate the clinical implications of the observed straylight variations.