Table 3 Final shortlist of items with discrimination and severity parameters

 2. Making out bumps in the road

2.9 (2.5–3.4)

0.5 ^a

1.4

1.7

2.7

 3. Seeing animals or vehicles walking

3.6 (3.0–4.2)

1.1

1.6

1.9

2.8

 6. Going out at night

2.5 (2.1–2.8)

0.8

1.5

1.8

2.2

 7. Finding way around indoors

4.0 (3.2–4.7)

1.4

2.0

2.3

3.4

 9. Recognizing people from a distance

2.1 (1.8–2.4)

0.0

0.9

1.1

1.5

 10. Recognizing a person near you

3.4 (2.8–4.1)

1.4

2.1

2.4

2.9

 11. Locking or unlocking the door

3.4 (2.8–4.0)

1.2

1.8

2.2

2.6

 12. Doing your usual work at home

3.6 (3.0–4.2)

1.1

1.7

2.0

2.9

 14. Searching for things at home

3.3 (2.8–3.8)

0.9

1.6

1.9

2.7

 17. Seeing differences in color

2.5 (2.1–2.9)

1.0

1.8

2.1

2.7

 18. Differentiating between money

2.7 (2.3–3.1)

0.8

1.6

1.9

2.4

 19. Going to the toilet

3.2 (2.6–3.8)

1.3

1.9

2.2

3.6

 20. Seeing objects fallen in your food

3.2 (2.7–3.7)

1.0

1.6

1.9

2.3

 21. Seeing container level when pouring

3.1 (2.6–3.5)

1.0

1.7

1.9

2.5

 22. Frightened going out at night

2.2 (1.9–2.6)

0.8

1.4

1.6

–

 23. Enjoy social functions less

2.7 (2.3–3.2)

1.1

1.5

1.7

–

 24. Ashamed that you can’t see

2.4 (2.0–2.9)

1.4

1.9

2.3

–

 25. Become a burden on others

2.2 (1.8–2.6)

1.3

1.8

2.0

–

 26. Frightened to lose remaining vision

2.0 (1.7–2.3)

0.8

1.4

1.7

–

 27. Do you have reduced vision

2.2 (2.0–2.5)

−0.1

1.3

1.8

–

 33. Do you have blurred vision

2.2 (1.9–2.5)

0.2

1.3

1.9

–

 16. Seeing inside after being out in sunlight

2.2 (1.8–2.5)

0.3

1.4

1.8

2.8

 28. Dazzled in bright light

2.5 (2.1–2.9)

0.4

1.4

1.8

–

 29. Blurry vision in the sunlight

3.5 (2.9–4.2)

0.2

1.2

1.7

–

 30. Bright light hurt your eyes

2.9 (2.4–3.3)

0.5

1.2

1.8

–

 31. Vehicle light makes you close your eyes

1.9 (1.6–2.2)

−0.4

0.9

1.3

–