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GM1 MED.B.070 Visual system

ED Decision 2019/002/R

COMPARISON OF DIFFERENT READING CHARTS (APPROXIMATE FIGURES)

(a) Test distance: 40 cm

Decimal

Nieden

Jäger

Snellen

N

Parinaud

1,0

1

2

1,5

3

2

0,8

2

3

2

4

3

0,7

3

4

2,5



0,6

4

5

3

5

4

0,5

5

5


6

5

0,4

7

9

4

8

6

0,35

8

10

4,5


8

0,32

9

12

5,5

10

10

0,3

9

12


12


0,25

9

12


14


0,2

10

14

7,5

16

14

0,16

11

14

12

20




(b) Test distance: 80 cm

Decimal

Nieden

Jäger

Snellen

N

Parinaud

1,2

4

5

3

5

4

1,0

5

5


6

5

0,8

7

9

4

8

6

0,7

8

10

4,5


8

0,63

9

12

5,5

10

10

0,6

9

12


12

10

0,5

9

12


14

10

0,4

10

14

7,5

16

14

0,32

11

14

12

20

14


Details
Source-Title: GM1 MED.B.070 Visual system View latest amendments
Erulesid: ERULES-1963177438-11286 Compare versions
Domain: Aircrew
Applicabilitydate: 30 January, 2019
Entryintoforcedate: 29 January, 2019
Regulatorysource: ED Decision 2019/002/R Navigate
Regulatorysubject: Part-MED
Typeofcontent: GM to IR (Guidance material to implementing rule)
Parentir: MED.B.070 Visual System
Origin: EASA
Category: EAR