LASIK for Hyperopia With the WaveLight Excimer Laser

Abstract

PURPOSE: To evaluate the safety and effi cacy of the ALLEGRETTO WAVE excimer laser system (WaveLight Laser Technologie AG, Erlangen, Germany) in LASIK for hyperopia and hyperopic astigmatism. METHODS:One hundred twenty consecutive LASIK cases for hyperopia with or without astigmatism treated with the ALLEGRETTO WAVE excimer laser were prospectively evaluated up to 12 months postoperatively. Patients were allocated into three groups according to their refractive sphere and cylinder: a low hyperopia group, with up to ϩ3.00 diopters (D) sphere and astigmatism рϩ1.00 D (n=52); a moderate hyperopia group with ϩ3.25 to ϩ5.00 D sphere and astigmatism of рϩ1.00 D (n=45); and a high hyperopia/toric group sphere уϩ5.25 D or cylinder у1.25.D (n=23). Flaps were created with the Moria M2 microkeratome (Moria, Antony, France). Parameters evaluated were pre-and postoperative refractive error, uncorrected visual acuity, best spectacle-corrected visual acuity (BSCVA), higher order aberration change, and contrast sensitivity.

One-year results of excimer laser in situ keratomileusis for hyperopia

“…Our rate was comparable to those in recent studies. [22][23][24][25][26][27][28][29][30] The rate of interface epithelial ingrowth larger than 0.5 mm with further enhancement was approximately 11%, a finding comparable to those in other published results. 18 However, the ingrowth was not clinically significant, nor was it related to loss of lines of CDVA.…”

Visual acuity and higher-order aberrations with wavefront-guided and wavefront-optimized laser in situ keratomileusis

“…Overall, both lasers have been found to be safe and effective for the treatment of myopia and hyperopia. 3,[15][16][17] The LASIK surgeries were performed at Emory Vision, Atlanta, Georgia, USA, from December 2006 to December 2007. All LASIK flaps were created with an Amadeus II microkeratome (Ziemer Ophthalmics Systems AG) with a nasally placed hinge.…”

Corneal aberrations and objective visual quality after hyperopic laser in situ keratomileusis using the Esiris excimer laser

“…The safety and efficacy results of excimer laser photorefractive keratectomy, laser-assisted subepithelial keratectomy, and laser in situ keratomileusis (LASIK) treatments for low and moderate degrees of hyperopia have been good. [1][2][3][4][5][6][7][8][9][10][11][12][13] However, the refractive outcomes are worse and not as stable in cases of high hyperopia. 2,6,7,14,15 On the other hand, hyperopic enhancements after a primary procedure give excellent results in a high percentage of cases.…”

“…[1][2][3][4][5][6][7][8][9][10][11][12][13] However, the refractive outcomes are worse and not as stable in cases of high hyperopia. 2,6,7,14,15 On the other hand, hyperopic enhancements after a primary procedure give excellent results in a high percentage of cases. 16,17 To achieve the hyperopic correction, the excimer laser ablates a ring of tissue in the midperipheral zone, generating central steepening of the cornea.…”