Abstract
PURPOSE:
To assess the predictability, efficacy, and safety of posterior chamber phakic implantable collamer lens (ICL) implantation after radial keratotomy.
METHODS:
In a retrospective non-comparative interventional case series, outcomes in 6 consecutive eyes of 4 patients with residual refraction after radial keratotomy were analyzed after the implantation of ICLs. All of the lenses were implanted to correct the residual refractive error, ranging from −12.00 to +3.50 diopters (D) for sphere and from −0.75 to −3.75 D for cylinder.
RESULTS:
The mean uncorrected distance visual acuity after ICL implantation was 0.31 ± 0.36 logMAR and the corrected distance visual acuity was 0.12 ± 0.10 logMAR. The mean efficacy index was 0.86. No eyes lost lines of visual acuity, two eyes did not change after surgery, two eyes gained one line, and two eyes gained two lines. The mean safety index was 1.17. No intraoperative complications were found and ICL explantation or repositioning was not required during the follow-up. No cases of cataract, pigment dispersion glaucoma, pupillary block, or other vision-threatening complications were found.
CONCLUSIONS:
ICL implantation may be considered a reasonable surgical procedure for correcting residual refractive errors after radial keratotomy.
[J Refract Surg. 2017;33(6):395–398.]
- 1.Fyodorov SN, Durnev VV. Anterior keratotomy method application with the purpose of surgical correction of myopia. In: , ed. Pressing Problems of Ophthalmosurgery. Moscow: Moscow Research Institute of Ocular Microsurgery; 1977:47–48. Google Scholar
- 2.Waring GO, Lynn MJ, McDonnell PJPERK Study Group. Results of the prospective evaluation of radial keratotomy (PERK) study 10 years after surgery. Arch Ophthalmol. 1994; 112:1298–1308.
10.1001/archopht.1994.01090220048022 Crossref Medline, Google Scholar - 3.Nordan LT, Binder PS, Kassar BS, Heitzmann J. Photorefractive keratectomy to treat myopia and astigmatism after radial keratotomy and penetrating keratoplasty. J Cataract Refract Surg. 1995; 21:268–273.
10.1016/S0886-3350(13)80130-7 Crossref Medline, Google Scholar - 4.Joyal H, Gregoire J, Faucher A. Photorefractive keratectomy to correct hyperopic shift after radial keratotomy. J Cataract Refract Surg. 2003; 29:1502–1506.
10.1016/S0886-3350(03)00482-6 Crossref Medline, Google Scholar - 5.Meza J, Perez-Santonja JJ, Moreno E, Zato MA. Photorefractive keratectomy after radial keratotomy. J Cataract Refract Surg. 1994; 20:485–489.
10.1016/S0886-3350(13)80224-6 Crossref Medline, Google Scholar - 6.Burnstein Y, Hersh PS. Photorefractive keratectomy following radial keratotomy. J Refract Surg. 1996; 12:163–170. Link, Google Scholar
- 7.Nassaralla BA, McLeod SD, Nassaralla JJ. Prophylactic mitomycin C to inhibit corneal haze after photorefractive keratectomy for residual myopia following radial keratotomy. J Refract Surg. 2007; 23:226–232. Link, Google Scholar
- 8.Koch DD, Maloney R, Hardten DR, Dell S, Sweeney AD, Wang L. Wavefront-guided photorefractive keratectomy in eyes with prior radial keratotomy: a multicenter study. Ophthalmology. 2009; 116:1688–1696.
10.1016/j.ophtha.2009.05.013 Crossref Medline, Google Scholar - 9.Attia WH, Alió JL, Artola A, Munoz G, Shalaby AM. Laser in situ keratomileusis for undercorrection and overcorrection after radial keratotomy. J Cataract Refract Surg. 2001; 27:267–272.
10.1016/S0886-3350(00)00751-3 Crossref Medline, Google Scholar - 10.Francesconi CM, Nose RA, Nose W. Hyperopic laser-assisted in situ keratomileusis for radial keratotomy induced hyperopia. Ophthalmology. 2002; 109:602–605.
10.1016/S0161-6420(01)00905-8 Crossref Medline, Google Scholar - 11.Muñoz G, Montés-Micó R, Albarrán-Diego C, Alió JL. Keratectasia after bilateral laser in situ keratomileusis in a patient with previous radial and astigmatic keratotomy. J Cataract Refract Surg. 2005; 31:441–445.
10.1016/j.jcrs.2004.05.057 Crossref Medline, Google Scholar - 12.Muñoz G, Albarrán-Diego C, Sakla HF, Javaloy J. Femtosecond laser in situ keratomileusis for consecutive hyperopia after radial keratotomy. J Cataract Refract Surg. 2007; 33:1183–1189.
10.1016/j.jcrs.2007.03.023 Crossref Medline, Google Scholar - 13.Leccisotti A, Fields SV. Femtosecond-assisted laser in situ keratomileusis for consecutive hyperopia after radial keratotomy. J Cataract Refract Surg. 2015; 41:1594–1601.
10.1016/j.jcrs.2015.08.014 Crossref Medline, Google Scholar - 14.Rush SW, Rush RB. One-year outcomes of femtosecond laser-assisted LASIK following previous radial keratotomy. J Refract Surg. 2016; 32:15–19.
10.3928/1081597X-20151207-07 Link, Google Scholar - 15.Srinivasan S, Drake A, Herzig S. Early management with implantable collamer lens in the management of hyperopia after radial keratotomy. Cornea. 2008; 27:302–304.
10.1097/ICO.0b013e31815ea268 Crossref Medline, Google Scholar - 16.Kamiya K, Shimizu K. Implantable collamer lens for hyperopia after radial keratotomy. J Cataract Refract Surg. 2008; 34:1403–1404.
10.1016/j.jcrs.2008.03.045 Crossref Medline, Google Scholar - 17.Colin J, Robinet A, Cochener B. Retinal detachment after clear lens extraction for high myopia: seven-year follow-up. Ophthalmology. 1999; 106:2281–2284.
10.1016/S0161-6420(99)90526-2 Crossref Medline, Google Scholar
