Sample size No = Number of subjects SE = spherical equivalent ECD= Endothelial cells density (ECD) HEX= Percentage of cells’ hexagonality (% HEX) COV= Coefficient of variation in percentage (% COV) CCT= Central Cornea thickness (CCT) Gender= 2=female, 1=male K= cornea curvature AL= axial length VA= visual acuity Grouping= 1=emmetrope(SE>-0.5), 2=mild myope(-3.00