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Table 2: Rate of disease progression by SD-tVEP latency abnormality*
| GPA slope | Abnormal latency | Normal latency | Total | ||||
| ≥ 0.7 dB/year | 21 (72.4%) | 8 (27.6%) | 29 | ||||
| < 0.7 dB/year | 29 (46.8%) | 33 (53.2%) | 62 | ||||
| Mean† | –0.87 ± 0.3 | –0.32 ± 0.4 |
*Expressed as number of eyes (%); †Mean ± standard deviation
