The Correlation between Corneal Shaping Force and Corneal Biological Parameters in Adolescents

Abstract

Abstract Purpose This study aimed to analyze the influence of corneal parameters on the corneal shaping force. Methods This retrospective study enrolled 189 patients. According to the different spherical equivalent(SE), grouping as: A, SE≤-2.0D; B,> -2.0D and≤-3.0D; C, > -3.0D and≤-4.0D; D, > -4.0D and≤-5.5D。Some parameters were measured before OK was worn. The shaping force is the difference between the equivalent spheres before and after wearing OK. Results One day post-OK, △SE of A was significantly associated with hexagonal cells(6A); B were associated with Em and coefficient of variation (CV); C was associated with horizontal curvature radius(rf); D were associated with height difference and corneal biomechanical index (TBI); in multivariate analyses, △SE were associated with SE and total corneal thickness. For one week, C was associated with the corneal biomechanical index(TBI), and D was associated with rf and Em (P < 0.05). In the multivariate analyses,△SE was associated with SE,SRI, and total corneal thickness(P < 0.001). Conclusions The factors affecting the corneal shaping force under different SE were different, and different analyses should be performed on the individualized corneal parameters of children.