Fig. 3

Transit time (A) and number of bumps (B) in a 4-year-old, spayed female Siberian Husky (case1, OD) are higher than normal dogs but lower than the dogs with no rod function with PDE6A mutation in most dim light setting. When the test was repeated with the light setting of 0.02 Lux after a short dark adaptation time (4 mins), the dog in case 1 showed markedly increase in transit time and number of bumps. Time of dark or light adaptation for each light setting is indicated in parentheses in minutes (mins)