eye opening (eye size) control

8,4270 1 2 3 4 5 6 7 8 9,0 1 2 3 4 5 6 7 8 90 1 2 3 4 5 6 7 8 90 1 2 3 4 5 6 7 8 9

4.1K0 1 2 3 4 5 6 7 8 9.0 1 2 3 4 5 6 7 8 9K

2500 1 2 3 4 5 6 7 8 90 1 2 3 4 5 6 7 8 90 1 2 3 4 5 6 7 8 9