Table 4 The correlation between pterygium sizes and corneal astigmatism and aberrations

Front corneal astigmatism (3 mm)

0.636

 < 0.001

0.377

0.003

0.448

 < 0.001

Back corneal astigmatism (3 mm)

0.452

 < 0.001

0.252

0.052

0.295

0.022

Front corneal astigmatism (7 mm)

0.809

 < 0.001

0.556

 < 0.001

0.692

 < 0.001

Back corneal astigmatism (7 mm)

0.574

 < 0.001

0.405

0.001

0.512

 < 0.001

Sim K astigmatism (D)

0.705

 < 0.001

0.422

0.001

0.566

 < 0.001

Total corneal abberation (3 mm)

0.444

 < 0.001

0.244

0.06

0.337

0.008

Higher-order abberation (3 mm)

0.515

 < 0.001

0.283

0.029

0.354

0.006

Total corneal abberation (7 mm)

0.456

 < 0.001

0.101

0.442

0.360

0.005

Higher-order abberation (7 mm)

0.413

 < 0.001

0.105

0.425

0.402

0.001