Long-term changes in corneal densitometry and associated factors following small incision lenticule extraction for moderate and high myopia.

ABSTRACT:

Purpose

To investigate long-term trends in corneal densitometry and associated influencing factors following small incision lenticule extraction (SMILE).

Methods

A comparative study was performed among 72 eyes of 38 patients undergoing SMILE. Eyes were divided into moderate myopia [mean spherical equivalent (SE),-4.22 ± 0.68D] and high myopia (mean SE,-7.63 ± 1.09 D) groups. Visual acuity, manifest refraction, corneal topography and corneal densitometry (CD) were evaluated preoperatively and 3 years postoperatively.

Results

The efficacy indices at last postoperative follow-up (42.47 ± 0.51 months) were 0.92 ± 0.21 and 0.97 ± 0.22, the safety indices were 1.12 ± 0.17 and 1.14 ± 0.21 for high and moderate myopia, respectively (all P > 0.05). CD values in the 0-6

SUBMITTER: Xu C 

PROVIDER: S-EPMC9492929 | biostudies-literature | 2022

REPOSITORIES: biostudies-literature