Investigating the impact of preoperative corneal astigmatism orientation on the postoperat

Investigating the impact of preoperative corneal astigmatism orientation on the postoperative spherical equivalent refraction following

intraocular lens implantation

Richard N.McNeely;Salissou Moutari;Eric Pazo;Jonathan E.Moore

【期刊名称】《眼视光学杂志（英文版）》 【年(卷),期】2024(005)001

【摘要】Background:To investigate the impact of the orientation of preoperative corneal astigmatism on achieving the postoperative target refraction

following

monofocal

intraocular

lens

(IOL)

implantation.Methods:This study enrolled 339 eyes who had uneventful cataract surgery or refractive lens exchange (RLE) with subsequent monofocal IOL implantation.Eyes were initially categorized dependent upon axial length and then on the orientation of preoperative anterior corneal astigmatism.Group 1 had against-the-rule (ATR) anterior corneal astigmatism,group 2 had with-the-rule (WTR) anterior corneal astigmatism,and group 3 had oblique (OB) anterior corneal astigmatism.The preoperative corneal astigmatism was determined by the IOLMaster (Carl Zeiss Meditec AG).Postoperative refraction was completed for all eyes,and the results were calculated and compared for the separate groups.Results:In eyes with axial lengths greater than 22.0 mm and less than 25.0 mm there was a significant difference between