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    Small-aperture optic IOL broadens range of vision

    Novel pseudophakic implant targets presbyopia without any apparent downsides

     

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    A foldable, hydrophobic acrylic IOL embedded with a small-aperture mask provided excellent visual acuity across all distances in patients who underwent monocular implantation after cataract surgery and was not associated with any visual symptoms that may occur with other presbyopia-correcting IOLs.

     

    Makati City, Philippines—The first reported outcomes from cataract surgery patients undergoing monocular implantation with a hydrophobic acrylic small-aperture IOL (IC-8, AcuFocus) show that this novel device is safe and provides a continuous broad range of excellent vision, said Robert E. Ang, MD.

    “Early functional results from patients with this novel IOL implanted are in alignment with outcomes achieved using the intracorneal small-aperture inlay (KAMRA, AcuFocus) in showing that it provides an extended range of vision,” said Dr. Ang, a surgeon at the Asian Eye Institute, Makati City, Philippines.

    This IOL is a single-piece aspheric lens (12.5 mm overall diameter) with an opaque annular mask embedded centrally into the 6-mm optic. Made of polyvinylidene fluoride (PVDF) and carbon nanoparticles, the mask is 5 μm thick, measures 3.23 mm in diameter, and has a 1.36 mm central aperture.

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    Dr. Ang presented data from follow-up out to 1 year for nine eyes operated on at his center. He reported mean monocular uncorrected visual acuity (UCVA) for the implanted eye was J2 for near and 20/20 for both intermediate and far distances. The results for near and intermediate vision were even better when testing was performed with refraction in the implanted eye shifted to a small amount of myopia (–0.75 DS), with little to no effect on distance vision, and there was no evidence that the lens induced any unwanted visual symptoms.

    “No adverse visual effects have been seen, and studies conducted in these initial recipients along with findings from investigations performed in an animal model show that the lens does not hamper the ability to perform posterior segment evaluations or surgical procedures,” Dr. Ang said. “Now we look forward to collecting additional data.”

    Small-aperture optics

    The benefits of small-aperture optics for correcting presbyopia have been known for a long time and explain the high satisfaction of patients with the small-aperture intracorneal inlay implanted, Dr. Ang noted.

    Cheryl Guttman Krader
    Cheryl Guttman Krader is a contributor to Dermatology Times, Ophthalmology Times, and Urology Times.

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