Correction of Residual Hyperopia After Cataract Surgery Using the Light Adjustable Intraocular Lens Technology

Published:November 19, 2008DOI:


      To determine whether residual hyperopia could be corrected postoperatively using the light adjustable lens technology in patients undergoing cataract surgery and light adjustable lens implantation.


      Prospective, nonrandomized clinical trial.


      Fourteen eyes of 14 patients were studied. The manifest refraction, uncorrected visual acuity (UCVA), and best-corrected visual acuity (BCVA) were determined with follow-up time to determine the achieved refractive corrections and their stability.


      Of 14 eyes, 13 eyes (92.9%) achieved ± 0.25 diopters (D) of the target refraction at one day post lock-in, with 100% of the eyes achieving the targeted refractive adjustment within 0.5 D or better up to six months postoperative follow-up. All eyes treated show no change in manifest spherical refraction >0.25 D between one day post lock-in, and three and six months postoperative visits. The data demonstrate the stability of the achieved refractive change after the adjustment and lock-in procedures. The mean rate of change was 0.006 D per month, which is six times more stable than that of refractive procedures.


      Residual hyperopia errors in the range of +0.25 to +2.0 D were successfully corrected with precision and significant improvement in UCVA and without compromising BCVA using the light adjustable intraocular lens technology.
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        • Pepose J.S.
        • Lim-Bon-Siong R.
        • Mardelli P.
        Future shock: the long-term consequences of refractive surgery.
        Br J Ophthalmol. 1997; 81: 428-429
        • Seitz B.
        • Langenbucher A.
        • Nguyen N.X.
        • Kus M.M.
        • Kuchle M.
        Underestimation of intraocular lens power for cataract surgery after myopic photorefractive keratectomy.
        Ophthalmology. 1999; 106: 693-702
        • Koch D.D.
        • Wang L.
        Calculating IOL power in eyes that have had refractive surgery.
        J Cataract Refract Surg. 2003; 29: 2039-2042
        • Hamed A.M.
        • Wang L.
        • Misra M.
        • Koch D.D.
        A comparative analysis of five methods of determining corneal refractive power in eyes that have undergone myopic laser in situ keratomileusis.
        Ophthalmology. 2002; 109: 651-658
        • Rosa N.
        • Capasso L.
        • Lanza M.
        • et al.
        Reliability of a new correcting factor in calculating intraocular lens power after refractive corneal surgery.
        J Cataract Refract Surg. 2005; 31: 1020-1024
        • Shammas H.J.
        • Shammas M.C.
        • Garabet A.
        • et al.
        Correcting the corneal power measurements for intraocular lens power calculations after myopic laser in situ keratomileusis.
        Am J Ophthalmol. 2003; 136: 426-432
        • Latkany R.A.
        • Chokshi A.R.
        • Speaker M.G.
        • et al.
        Intraocular lens calculations after refractive surgery.
        J Cataract Refract Surg. 2005; 31: 562-570
        • Gimbel H.V.
        • Sun R.
        Accuracy and predictability of intraocular lens power calculation after laser in situ keratomileusis.
        J Cataract Refract Surg. 2001; 27: 571-576
        • Sónego-Krone S.
        • López-Moreno G.
        • Beaujon-Balbi O.V.
        • et al.
        A direct method to measure the power of the central cornea after myopic laser in situ keratomileusis.
        Arch Ophthalmol. 2004; 122: 159-166
        • Hoffer K.J.
        Intraocular lens power calculation for eyes after refractive keratotomy.
        J Refract Surg. 1995; 11: 490-493
        • Koch D.D.
        • Wang L.
        Calculating IOL power in eyes that have had refractive surgery [editorial].
        J Cataract Refract Surg. 2003; 29: 2039-2042
        • Masket S.
        • Masket S.E.
        Simple regression formula for intraocular lens power adjustment in eyes requiring cataract surgery after excimer laser photoablation.
        J Cataract Refract Surg. 2006; 32: 430-434
        • Mackool R.J.
        • Ko W.
        • Mackool R.
        Intraocular lens power calculation after laser in situ keratomileusis; aphakic refraction technique.
        J Cataract Refract Surg. 2006; 32: 435-437
        • Schwartz D.M.
        Light-adjustable lens.
        Trans Am Ophthalmol Soc. 2003; 101: 417-436
        • Schwartz D.M.
        • Sandstedt C.A.
        • Chang S.H.
        • et al.
        Light-adjustable lens: development of in vitro nomograms.
        Trans Am Ophthalmol Soc. 2004; 102 (discussion 72–74): 67-72
        • Sandstedt C.A.
        • Chang S.H.
        • Grubbs R.H.
        • Schwartz D.M.
        Light adjustable lens: customizing correction for multifocality and higher-order aberrations.
        Trans Am Ophthalmol Soc. 2006; 104: 29-39
        • Olson R.
        • Mamalis N.
        • Hauge B.
        A light adjustable lens with injectable optics.
        Ophthalmol Clin North Am. 2006; 19: 135-142
        • Hayashi K.
        • Hayashi H.
        Comparison of the stability of 1-piece and 3-piece acrylic intraocular lenses in the lens capsule.
        J Cataract Refract Surg. 2005; 31: 337-342
      1. ANSI Z80.11-2007, American National Standard for Ophthalmics – Laser Systems for Corneal Reshaping.


      Artura Chayet, MD, is the Director of Codet Vision Institute, in Tijuana, Mexico and a Past-President of the Mexican Society of Refractive Surgery. He received his degree in Cornea and Refractive Surgery at the University of California, San Diego, California. Dr Chayet has become one of the world's leading refractive surgeons. He has been recognized worldwide for contributing to the development of instruments, techniques, and software used in refractive surgery today.