| (1) This study enrolled 12 patients scheduled for ICL surgery at Shanghai Aier Eye Hospital. The mean SE was -7.68±3.43 D , and the mean astigmatism was -1.54±0.37 D. The mean age of the patients was 20.86±4.02 years. (2) FS- AK was performed using a Catalys laser system. Symmetrical arcuate incisions were created in the anterior stroma along the steep meridian, centered on the limbus with an 8.5 mm diameter. The arc length and incision depth were calculated using the LRI Calc formula. (3) For the ICL surgery, a 3.0 mm corneoscleral incision was made at the pre-planned position, and an ICL was implanted. (4) Preoperative and 1-month postoperative examinations included UCVA, BSCVA, MR, NCT, corneal topography and so on. (5) Vector analysis was performed to evaluate the correction index (CI), surgically induced astigmatism (SIA), difference vector (DV), and target induced astigmatism (TIA). |
