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Table 2 Modulation transfer function values measured with the ISO1 and ISO2 model corneas at primary and secondary peak foci for different pupil sizes and the according Peak 2/1 Ratio percentage. IOL = Intraocular Lens; MTF = Modulation Transfer function

From: Laboratory evaluation of the optical properties of two extended-depth-of-focus intraocular lenses

IOL

Cornea model

Pupil size

Peak 1

Peak 2

Peak 2/1 Ratio (%)

Position in Diopter

Mean MTF value

Position in Diopter

Mean MTF value

Symfony

ISO 1

2 mm

20

0.361

+ 1.41

0.431

119.4%

3 mm

20

0.387

+ 1.59

0.416

107.5%

4.5 mm

20

0.225

+ 1.85

0.252

112.0%

ISO 2

2 mm

20

0.410

+ 1.57

0.424

103.4%

3 mm

20

0.418

+ 1.65

0.395

94.5%

4.5 mm

20

0.437

+ 1.69

0.344

78.7%

LARA

ISO 1

2 mm

20

0.311

+ 1.85

0.442

142.1%

3 mm

20

0.365

+ 1.87

0.323

88.5%

4.5 mm

20

0.487

+ 1.96

0.257

52.8%

ISO 2

2 mm

20

0.339

+ 1.85

0.380

112.1%

3 mm

20

0.351

+ 1.65

0.209

59.5%

4.5 mm

20

0.169

+ 1.19

0.187

110.7%