Table 1 Patient characteristics by group

n

64

70

Age (years)

0.41§

 Mean ± SD

69.5 ± 8.8

70.7 ± 8.2

 Median (range)

70.5 (51–91)

72.0 (48–93)

Female (%)

53.1%

54.3%

0.89‡

AMTS

9.72

9.79

0.50§

Education level^¶

0.33‡

 No school leaving qualification

1 (1.6%)

2 (2.9%)

 Secondary school

12 (19.0%)

18 (25.7%)

 Apprenticeship

16 (25.4%)

14 (20.0%)

 Vocational school

20 (31.7%)

13 (18.6%)

 High school

7 (11.1%)

15 (21.4%)

 University degree

7 (11.1%)

8 (11.4%)

Computer usage

0.53‡

 Never used before

16 (25.0%)

23 (32.9%)

 Rarely

9 (14.1%)

10 (14.3%)

 Several times a month

3 (4.7%)

3 (4.3%)

 Several times a week

9 (14.1%)

14 (20.0%)

 Several times a day

27 (42.2%)

20 (28.6%)

Ocular comorbidities

20 (31.3%)

19 (27.1%)

0.60‡

 Glaucoma

7 (10.9%)

6 (8.6%)

 Amblyopia^a

1 (1.6%)

2 (2.9%)

 Epiretinal membrane/vitreomacular traction^a

1 (1.6%)

2 (2.9%)

 Age-related macular degeneration^a

 (nonexudative/exudative)

5 (7.8%)

(5/0)

3 (4.3%)

(2/1)

 Pseudovitelliform macular lesion^a

0 (0.0%)

1 (1.4%)

 Corneal scar/opacification^a

1 (1.6%)

3 (4.3%)

 Cornea guttata^a

2 (3.1%)

1 (1.4%)

 Strabismus

0 (0.0%)

1 (1.4%)

 Synchysis

1 (1.6%)

1 (1.4%)

 Treated retinal tear

3 (4.7%)

1 (1.4%)

 Optic disc drusen

0 (0.0%)

1 (1.4%)

 Unilateral optic atrophy due to optic nerve sheath meningioma^a

1 (1.6%)

0 (0.0%)

Potential VA-related comorbidities

11 (17.2%)

12 (17.1%)

1.00‡