Topic 6 · Alcohol, Drugs, and Driving (DUI Laws)
What is the effect of alcohol on vision?
- No effect
- Improves night vision
- Can cause blurred vision or tunnel vision — correct answer
Why
Alcohol blurs vision, narrows your visual field and slows the eye's ability to refocus and recover from glare.
Practise this in the real format
Reading one answer is not the same as sitting the test. The simulator runs the first-time adult form: 36 questions, 6 mistakes allowed, 83% to pass.
Source: California Driver's Handbook (DL 600, rev. 6/2025), the document the DMV writes the real test from. Edited by Fernando Aguilera. Aprobify is not affiliated with the California DMV.
More from Alcohol, Drugs, and Driving (DUI Laws)
- Is it ever legal to drive after drinking alcohol if you feel okay?
- Which is NOT a common penalty for a first-time DUI conviction in California?
- What is the recommended practice when transporting marijuana in a car?
- For drivers under 21, what is the penalty for using a fake ID to buy alcohol?
- Field sobriety tests may include:
- If you’re under 21 and caught with any open or unopened alcohol in your car without a guardian, your car: