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)7.45ns
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)1.47ns
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)- 6.61ns
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)3.28ns
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)−22.34ns
 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)2.14ns
  • 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.