| Popis: |
The foveal thresholds for red, green, and blue colours of twelve patients with tobacco amblyopia and twelve age-matched normal controls were measured with the Tubinger perimeter. The difference in foveal thresholds between the patients and controls was highly significant for red (t = 17.35, P 0.05). The difference in thresholds between patients and controls for red was significantly greater than that for green and blue. The difference in threshold between patients and controls for green did not differ significantly from that for blue. Thus in tobacco amblyopia the foveal sensitivity to red was far more reduced than for the green or blue. |
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