Early postoperative changes in corneal densitometry after SMILE with 120-μm and 130-μm cap thickness: a comparative study

CD increased mainly in the 0-6 ​mm zone of the anterior layer in the early phase after the SMILE procedure with both the 120-μm and 130-μm groups. The increase in CD in the anterior 2-6 ​mm zone one week postoperatively was higher in the 120-μm group than in the 130-μm group. SMILE with 120-μm and 130-μm cap thickness were both efficient and safe, but eyes with a 120-μm cap thickness showed higher postoperative corneal wavefront aberrations.