Figure 3. Electroretinogram traces from a laser-treated eye in a representative adult albino Swiss mouse. Electroretinogram recordings in response to flash stimuli of increasing intensity for the from a representative animal in group IV registered before laser treatment (0 h) and 24 h, 1 week, 4 weeks, 6 weeks and 8 weeks later. We found a significant reduction in the scotopic threshold response, a-wave, and b-wave amplitudes by 24 h after lasering, amounting to approximately 81%, 64%, and 54% of their basal values, respectively. The changes observed in the electroretinogram never fully recovered for survival times of up to 8 weeks after lasering, indicating that these are permanent.