Retrospective Analysis of Changes in the Anterior Corneal Surface After Q Value Guided LASIK and LASEK in High Myopic Astigmatism for 3 Years

Hui Huang; Jianguo Yang; Huijing Bao; Shaorong Chen; Beibei Xia; Jun Zou


BMC Ophthalmol. 2012;12(15) 

In This Article


Laser in situ keratomileusis (LASIK) was reported clinically in 1990[1] and was still a commonly performed surgery all over the world. Laser epithelial keratomileusis (LASEK), as a surface ablation technique, has gained popularity in recent years. However, many previously published papers have indicated that there was occasional poor postoperative quality of vision after conventional refractive surgery such as glare and halos.[2] In recent years, customized ablation surgery emerged to improve visual quality. Q value guided ablation, as one of the customized surgical procedures, has been reported clinically in recent years. It would be interesting to know its efficacy and safety in correcting high myopic astigmatism and how it changed the shape of the cornea. The main goals of this study were to compare visual acuity, corneal high-order aberrations and changes in the anterior corneal surface between Q-value guided LASIK and LASEK.