rss
Br J Ophthalmol 85:928-932 doi:10.1136/bjo.85.8.928
  • Scientific correspondence

Electrophysiological changes after 360° retinotomy and macular translocation for subfoveal choroidal neovascularisation in age related macular degeneration

Table 1

Electrophysiological outcome after 360° retinotomy and macular translocation

Rod responses Presurgery Post surgery Reduction (%) Statistical significance
0.01 cd.s/m2:
 b-wave amplitude (μV) 51.34 (26.03) 14.19 (13.56) 72.36
 b-wave implicit time (ms) 112.60 (5.15) 91.70 (38.14) 18.56
0.03 cd.s/m2:
 b-wave amplitude (μV) 81.34 (37.53) 21.00 (21.25) 74.18
 b-wave implicit time (ms) 107.4 (7.41) 99.4 (25.13) 7.45 ns
0.1 cd.s/m2:
 b-wave amplitude (μV) 147.91 (57.61) 45.69 (33.51) 69.11
 b-wave implicit time (ms) 95.53 (9.88) 94.13 (26.14) 1.47 ns
0.2 cd.s/m2:
 b-wave amplitude (μV) 194.37 (76.73) 64.16 (37.82) 66.99
 b-wave implicit time (ms) 86.53 (9.58) 92.25 (22.48) - 6.61 ns
Mixed cone and rod responses:
 a-wave amplitude (μV) 91.81 (45.95) 49.16 (30.06) 46.45
 a-wave implicit time (ms) 24.07 (1.36) 26.96 (6.05) −12.01
 b-wave amplitude (μV) 239.03 (93.49) 98.75 (64.44) 58.69
 b-wave implicit time (ms) 46.93 (1.62) 48.47 (7.09) 3.28 ns
Cone responses:
 a-wave amplitude (μV) 40.69 (22.25) 29.78 (16.65) 26.81
 a-wave implicit time (ms) 14.52 (2.72) 17.74 (8.99) −22.34 ns
 b-wave amplitude (μV) 238.91 (109.88) 101.75 (65.98) 42.59
 b-wave implicit time (ms) 46.75 (2.00) 45.75 (12.79) 2.14 ns
  • Mean (SD) of the preoperative and postoperative ERG amplitudes (μV) and implicit times (ms). Reduction (%) in comparison with the initial presurgical value given. Significance of the pairedt test. ns = not significant,

  • 0.05 > p > 0.001,

  • p < 0.001.

This Article

Register for free content


Free sample
This recent issue is free to all users to allow everyone the opportunity to see the full scope and typical content of BJO.
View free sample issue >>

Don't forget to sign up for content alerts so you keep up to date with all the articles as they are published.