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Table 1 Reading acuity Equivalents of Modern and Historic Reading Charts

From: Near vision examination in presbyopia patients: Do we need good homologated near vision charts?

Modern homologated reading charts

Parinaud

Jaeger German

Nieden

logRAD logMAR

Decimal 32 cm

Decimal 32 cm

Decimal 32 cm

Decimal 32 cm

−0.2

1.6

–

–

–

−0.1

1.25

–

–

–

0.0

1.0

–

–

–

0.1

0.8

–

–

–

P1.5 = 0.72

–

–

0.2

0.63

–

J1 = 0.63

N1 = 0.61

N2 = 0.59

0.3

0.5

P2 = 0.48

 

N3 = 0.46

0.4

0.4

P3 = 0.40

J2 = 0.43

N4 = 0.40

J3 = 0.38

N5 = 0.37

0.5

0.32

P4 = 0.33

–

–

0.6

0.25

P5 = 0.29

J4 = 0.27

N6 = 0.29

 

J5 = 0.25a

N7 = 0.27

 

J6 = 0.25a

N8 = 0.25

P6 = 0.23

J7 = 0.23

 

0.7

0.2

–

J8 = 0.20

–

0.8

0.16

P8 = 0.18

J9 = 0.18

N9 = 0.17

P10 = 0.16

  

0.9

0.125

P14 = 0.12

  
  1. aJ5 and J6 have the same print size but differ in font types