The test 3. Eye-test depth will have a stick 2 sticks. One of the rods in the core by the test press the Snooze button again the rods to come once again to the same level of sliding rods core.
The third test depth eye test. There are two bars, wooden sticks One of the core rod To test, press the scroll bars to the other two times, the first move in the same class as the main bar.
The test 3 eye test depth will stick 2 rods. One is the core by the ทดสอบกดปุ่ม move again bars around 2 times. First move to stay at the same level as the main rods