Lasso procedure to revise overcorrection with radial keratotomy

PURPOSE: To report three patients who underwent the lasso procedure to revise overcorrection with radial keratotomy, METHODS: Case report and review of the literature. RESULTS: Four eyes of three patients who had undergone radial keratotomy with resultant hyper epic overcorrection underwent a lasso procedure. Before the procedure, average cycloplegic refraction spherical equivalent was +3.656 +/- 1.352 diopters, and average manifest refraction spherical equivalent was +2.250 +/- 0.621 diopters. A 10.0 monofilament nylon suture was placed in a circumferencial manner through the corneal stroma and overlapping the old radial keratotomy incisions. At 1 month postoperatively, best corrected visual acuity was 20/20 in all four eyes, with average cycloplegic refraction spherical equivalent +0.438 +/- 1.423 diopters and average manifest refraction spherical equivalent -0.156 +/- 1.147 diopters, Mean delta cycloplegic refraction spherical equivalent was 3.219 +/- 1,724. CONCLUSIONS: The lasso procedure provides an immediate solution for symptomatic overcorrected hyperopic eyes after radial keratotomy. Predictability and long term stability necessitate further follow-up. (Am J Ophthalmol 1998;126: 825-827. (C) 1998 by Elsevier Science Inc. All rights reserved.).