Table 2 of Bregnhøj, Mol Vis 2014; 20:852-863.


Table 2. Full-field electroretinography examination results (right eye) in a female carrier of RPGR ORF15 X-linked retinitis pigmentosa at age 16 and 22 years.

Parameters Scotopic Photopic
Stimulus Rod Rod-cone
a-wave Rod-cone
b-wave Oscillatory potentials Single flash cone response 30 Hz Flicker Red Green Blue
Normal values (n=85)
Median amplitude (µV) 210 205 427 77 136 101 105.2 114.6 4.4
(5–95th percentile) (124–302) (111–312) (285–674) (29–125) (61–154) (61–154) (64.5–172.9) (62–181) (0.9–8.9)
Median implicit times (ms) 103 23 48 25.2 29 26 29.2 28 43.6
(5–95th percentile) (81–123) (21.0–25.0) (41.0–55.0) (24.0–27.2) (27.0–32.0) (25.0–30.0) (27.0–32.0) (26.0–32.2) (39.4–51.0)
16 years*
Amplitudes (µV) 335 237 538 94.9 201 139 159 184 2.91
Implicit times (ms) 88.5 21.5 57.5 24.6 31.5 30.5 30.8 30.6 44
22 years*
Amplitudes (µV) 240 145 448 31.1 118 89.2 109 114 2.41
Implicit times (ms) 100 21.5 62 31.6 32.5 27.5 31.2 31.6 46
22 years
(6 h dark adaptation)
Amplitudes (µV) 230 155 415 41.8 107 92 96.8 119 N/A
Implicit times (ms) 94.5 23 55 26 34 32.5 32.6 33 N/A