Long-term outcomes of limbal relaxing incisions during XXXX surgery: aberrometric analysis.

@entity940 @entity1 @entity2008 @entity231
PURPOSE: To compare the final changes in corneal wavefront aberration by limbal relaxing incisions (LRIs) after @entity231 surgery. METHODS: This prospective cumulative interventional nonrandomized case study included @entity231 and @entity940 @entity1 undergoing LRIs and phaco with intraocular lens implantation. LRIs were planned using Donnenfeld nomogram. The root mean square of corneal wave aberration for total Z(n,i)(1 <=n <=8), @entity940 Z(2,  1), coma Z(3-5-7,  1), trefoil Z(3-5-7,  2), spherical Z(4-6-8,0), and @entity2008 ( @entity2008 ) Z(3 <=n <=8) was examined before and 3 years after surgery (optical path difference-Scan II [OPD-Scan II)]. Uncorrected distance visual acuity and best-corrected distance visual acuity (CDVA) for distance, keratometric cylinder, and variations in average corneal power were also analyzed. RESULTS: Sixty-four eyes of 48 @entity1 were included in the study. Age ranged from 42 to 92 years (70.6  8.4 years). After LRIs, uncorrected distance visual acuity and best-corrected distance visual acuity improved statistically (P<0.01). The keratometric cylinder value decreased by 40.1%, but analysis of KP90 and KP135 polar values did not show any decrease that could be statistically confirmed (P=0.22 and P=0.24). No significant changes were detected in root mean square of total (P=0.61) and HOAs (P=0.13) aberrations. LRIs did not induce alteration in central corneal power confirming a 1:1 coupling ratio. CONCLUSION: LRIs determined a nonsignificant alteration of corneal @entity2008 . Therefore, LRIs can be still considered a qualitatively viable mean in those cases where toric intraocular lenses are contraindicated or not available. Yet, the authors raise the question of nonpersonalized nomograms, as in the present study, LRIs did not reach the preset target cylinder.
