Table 2 Estimated visual acuity according to the amount of astigmatism, based on the regression formulas.

From: Prediction of distance visual acuity in presbyopic astigmatic subjects

Astigmatism

0.5 D

1.0 D

1.5 D

2.0 D

2.5 D

3.0 D

Estimated visual acuity (log MAR)

All eyes

− 0.05

0.03

0.11

0.20

0.30

0.41

Phakic eyes

− 0.06

0.02

0.10

0.19

0.28

0.38

Pseudophakic eyes

− 0.04

0.03

0.12

0.22

0.34

0.46