Table 4 The correlation analysis of preoperative biometric values for the difference of each formula expected value from the post-operative refraction

0.127 (p = 0.230)

−0.019 (p = 0.859)

−0.141 (p = 0.183)

0.187 (p = 0.077)

0.277 (p = 0.008)^a

0.301 (p = 0.004)^a

0.259 (p = 0.013)^a

0.109 (p = 0.303)

0.265 (p = 0.011)^a

0.238 (p = 0.023)^a

0.176 (p = 0.096)

0.077 (p = 0.469)

0.266 (p = 0.011)^a

0.219 (=0.037)^a

0.209 (p = 0.047)^a

0.164 (p = 0.120)