| Type | MGI:General | Description | abnormal ERG response, with an elevated threshold, 100-fold decrease in sensitivity to light (b-wave amplitude) and half of normal response to a maximal stimulus dark-adapted ERG analysis shows that vision progressively improves and approaches that of wild-type mice by 24 weeks of age on a vitamin-A deficient diet, the b-wave amplitude progressively decreases, the ERG threshold rises, the amplitude of the a-wave decreases and the falling phase is more prolonged compared to an unchanged ERG response in wild-type mice on the same diet |
