Table 2 Comparison of visual functions and subjective appraisals on life quality before and after wearing Onyx.

From: Clinical efficacy of a head-mounted device for central vision loss

Metric

Without Onyx, mean ± SD

With Onyx, mean ± SD

P value

Percentage of improvement, %

Number of patients with significant improvement, n (%)

Visual functions

 Near VA, LogRAD

1.10 ± 0.13

0.99 ± 0.14

 < 0.001*

10.00%

25/41 (60.98%)

 Distance VA, LogMAR

1.58 ± 0.27

1.36 ± 0.29

 < 0.001*

13.92%

33/41 (80.49%)

 Combined recognition score, point

7.32 ± 2.53

12.68 ± 1.63

 < 0.001*

73.22%

37/41(90.24%)

 Face recognition score

7.10 ± 2.64

12.48 ± 2.17

 < 0.001*

75.77%

N/A

 Object recognition score

7.54 ± 3.01

12.88 ± 1.71

 < 0.001*

70.82%

N/A

Scores of the LVQOL questionnaire

 Total score, point

52.05 ± 3.75

60.95 ± 3.80

 < 0.001*

17.10%

28/41 (68.29%)

 Distance vision, mobility and lighting

26.80 ± 4.28

30.02 ± 3.37

 < 0.001*

12.01%

N/A

 Adjustment

9.00 ± 1.69

10.41 ± 1.76

 < 0.001*

15.67%

N/A

 Reading and fine work

7.93 ± 1.33

9.68 ± 1.37

 < 0.001*

22.07%

N/A

 Activities of daily living

8.00 ± 1.50

9.33 ± 1.28

 < 0.001*

16.63%

N/A

  1. SD  standard deviation, VA  visual acuity.
  2. A significant improvement of near VA was defined as ≥ 0.1 LogRAD, and a significant improvement of distance VA was defined as ≥ 0.1 LogMAR.
  3. A significant improvement of combined recognition score was defined as ≥ 3 scores, and a significant improvement of the total LVQOL score was defined as ≥ 7 scores.
  4. *Indicates P < 0.05.
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