Question

15 Procedure 5 finding the Blind Spot Recall that the location where the optic nerve exits the eyeball lacks photoreceptors and so leaves a "blind spor"-a place that can produce no images. You can find the blind spot with the simple diagram shown in Figure 15.11. Close your left eye, and hold Figure 15.11 about 56 cm (18 inches) in front of your right eye so that the" + is directly in line with your right eye. 2 Slowly move Figure 15.11 toward your right eye while staring at the "+" until the large dor disappears. When it disappears, it is in your blind spot. 3 Have your lab partner measure with a ruler the distance from the page to your eye. Distance in centimeters: 4 Repeat the process for your left eye. Distance in centimeters: FIGURE 15.11 Blind spot test.

Answer 1

3. 25 cm. Blind spot for right eye(Dot disappeared at 25 cm)

4.22 cm. Blind spot for left eye(Cross disappeared at 22 cm)