The degree of impact of several fibrous tunic biomechanical parameters on biomechanical indices was studied using multifactor correlation analysis. In patients with "normal" cornea corneal thickness was found to be the most significant factor influencing corneal hysteresis, corneal resistance factor, elasticity coefficient and elasticity rise, hence values of corneal biomechanical properties prevail over all other biomechanical indices studied in this work. However influence of significant changes in scleral biomechanics (e. g. in high myopia) on these factors (especially corneal hysteresis and elasticity rise) can not be excluded.