Table 1 Number of abnormal points in 2 successive mesopic Maia exams in 25 iAMD eyes using 2 criteria for abnormality, and the average threshold and deviation of these points.

From: Improved sensitivity of microperimetric outcomes for clinical studies in age-related macular degeneration

 

Exam 1

Exam 2

# of points (range,%)

Threshold (dB)

Deviation (dB)

# of points (range,%)

Threshold (dB) (p values vs Exam 1)

Deviation (dB)

Threshold lower than 1.65 SD (2.9 dB) of age-corrected normal

11.8 ± 9.12

(0–32)

38%

23.3 ± 1.351

− 4.9 ± 1.21

12.6 ± 9.6

(0–32)

40%

23.0 ± 1.342

(p = 0.26)

− 5.2 ± 1.32

Threshold lower than 2.0 SD (3.6 dB) of age-corrected normal

8.4 ± 8.2

(0–30)

27%

22.4 ± 1.83

− 5.8 ± 1.53

9 ± 8.9

(0–29)

29%

22.2 ± 1.64

(p = 0.49)

− 6.0 ± 1.34

  1. 1There was one eye with no abnormal points, so it was not included in this analysis.
  2. 2–4There were 2 eyes with no abnormal points, so they were not included in this analysis.
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