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    Inlay promising in select patients

    Procedure shows select good results as presbyopia-correcting treatment in postLASIK eyes


    Figure 1 The intracorneal inlay (Kamra, AcuFocus) is currently an investigational device in the United States.
    Chicago—Results from a small study indicate the feasibility, safety, and efficacy of improving near vision in patients with previous LASIK by implanting a small-aperture corneal inlay (Kamra, AcuFocus) (Figure 1) into a femtosecond laser-created corneal pocket, said Francisco Sánchez León, MD, at the annual meeting of the American Society of Cataract and Refractive Surgery.

    Dr. Sánchez León
    "Our experience in this limited series shows that the corneal pocket for implantation of the small-aperture corneal inlay could be created safely beneath a previous LASIK flap, the inlay could be safely and precisely inserted, and it was highly effective for correcting presbyopia with minimal impact on distance vision," said Dr. Sánchez León, ophthalmic surgeon, Novavision Laser Center, Naucalpan, Mexico.

    "Therefore, we believe it is a promising technique to treat presbyopia in appropriately selected patients with prior LASIK," he said.

    The study included seven patients who had prior LASIK for distance correction 7 months to 7 years earlier. To be eligible for the presbyopia-correcting procedure, patients had to be between 45 and 60 years of age with 20/20 or better distance uncorrected visual acuity (UCVA) in the untreated eye, near UCVA of J4 or worse in the treatment eye, SE between 0 and –0.75 D, and cylinder ≤0.75 D.

    In addition, the LASIK flap had to be ≤160 μm and total corneal thickness had to be >480 μm.

    The LASIK flap thickness in the seven patients as measured by Fourier-domain optical coherence tomography (OCT) ranged from 90 to 160 μm (mean 138 μm) and the pachymetry prior to the inlay procedure ranged from 490 to 575 μm (mean 525 μm). Preoperative MRSE ranged from plano to –0.75 D (mean –0.167 D).


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