Relationship among Corneal Biomechanics,Anterior Segment Parameters,and Geometric Corneal Parameters

Purpose. to investigate the relationship between corneal biomechanical parameters,anterior segment parameters,and geometric corneal parameters in a healthy caucasian group. methods. this retrospective study included the healthy eyes with best corrected visual acuity of at least 20/40 of 122 caucasian subjects. the anterior segment parameters and geometric corneal parameters such as corneal volume,central corneal thickness,horizontal and vertical corneal radii,anterior and posterior steep,and flat keratometric values were measured with a scheimpflug camera. the biomechanical properties were measured with ocular response analyzer. results. one hundred and twenty-two healthy caucasian subjects (67 males,55 females) with a mean age of 45.32 � 20.23 were enrolled. both corneal hysteresis and corneal resistance factor were positively correlated with cct (r = 0.529,p < 0.001; r = 0.638,p < 0.001) and cv (r = 0.635,p < 0.001; r = 0.579,p < 0.001) and negatively correlated with age (r = - 0.373,p < 0.001; r = - 0.249,p < 0.001). both in age-gender and multivariate models,ch and crf had statistically significant negative association with the posterior steep k value. conclusions. ch and crf are negatively correlated with posterior steep and average posterior k values. � 2016 sadik g�rkem �evik et al.