Table 2. VEP latency and amplitude findings in 66 patients.
| VEP Latency and Amplitude | VA Right Eye | Total for Right Eye | VA Left Eye | Total for Left eye | VA Combined (%) | Total for both eyes | |||
| Normal | Abnormal | n = 64 | Normal | Abnormal | n = 66 | Normal n = 85 | Abnormal n = 45 | n = 130 (100) | |
| Norm lat/Norm amp | 18 | 5 | 23 | 19 | 5 | 24 | 37 (78.7) | 10 (21.3) | 47 (36.2) |
| Norm lat/Abn amp | 9 | 2 | 11 | 7 | 1 | 8 | 16 (84.2) | 3 (15.8) | 19 (14.6) |
| Abn lat/Norm amp | 12 | 14 | 26 | 16 | 13 | 29 | 28 (50.9) | 27 (49.1) | 55 (42.3) |
| Abn lat/Abn amp | 1 | 3 | 4 | 3 | 2 | 5 | 4 (44.4) | 5 (55.6) | 9 (6.9) |
| Total Abn Latency | 13 | 17 | 30 | 19 | 15 | 34 | 32 (50) | 32 (50) | 64 |
| Total Abn Amplitude | 10 | 5 | 15 | 10 | 3 | 13 | 20 (71.4) | 8 (28.6) | 28 |
VEP – Visual Evoked Potential, VA – Visual Acuity, Norm – normal, lat – latency, amp – amplitude, Abn – abnormal.