Laser in situ keratomileusis to correctrefractive errors after keratoplasty

Abstract

The correction of refractive error with LASIK in postkeratoplasty patients proved to be safe, effective, and predictable. Further studies with longer follow-up are needed to determine the method's clinical value.

Management of post-keratoplasty astigmatism

“…89,90 Laser in situ keratomileusis has the advantage of correcting a wider range of spherical errors and astigmatism than PRK, and it provides effective and predictable refractive outcomes following keratoplasty. [91][92][93][94][95] Although LASIK reduces the risk for postoperative haze and corneal scarring compared with PRK, some potential complications are associated with flap creation. [96][97][98] Other adverse events include ectasia, dry-eye syndrome, epithelial ingrowth, and diffuse lamellar keratopathy.…”

Topography-guided customized laser-assisted subepithelial keratectomy for the treatment of postkeratoplasty astigmatism

“…This result is generally better than that previously reported with PRK techniques for postkeratoplasty astigmatism [11][12][13][14][15] and is comparable to reports after LASIK. [16][17][18][19][20][21] It is likely that further refinements to treatment algorithms will improve refractive outcomes.…”

“…[11][12][13][14][15] Recent reports of laser in situ keratomileusis (LASIK) have been more encouraging, with a reduction in spherical equivalent (SE) refractive error of up to 96% and cylindrical reduction of up to 71%. [16][17][18][19][20][21] Although haze-related problems can be overcome in LASIK, there is an increased risk for developing flap-related complications due to graft override and graft-host misalignments. In a long-term follow-up study of LASIK in postkeratoplasty eyes, Hardten et al 22 highlight the need for extreme caution in patient selection due to the above-mentioned problems.…”

Safety and efficacy of femtosecond laser–assisted arcuate keratotomy to treat irregular astigmatism after penetrating keratoplasty

“…[1][2][3] Therapeutic options vary and include spectacles and contact lenses for mild regular astigmatism (0.50 to 3.00 diopters [D]), refractive lasers for moderate regular astigmatism (3.00 to 5.00 D), and surgical procedures for severe regular and irregular astigmatism (O5.00 D). [4][5][6][7][8] In the past several years, photorefractive keratectomy (PRK) and laser in situ keratomileusis (LASIK) have acquired a significant role in the management of post-PKP refractive errors but could be limited in the amount of astigmatism that can be treated after corneal transplantation. [6][7][8] Surgical procedures such as relaxing incisions and wedge resections are used for more advanced astigmatism but have been associated with unpredictable results and high complication rates.…”