Question

if you use a computer monitor, tablet, or cell phone for long periods of time, you should not

multiple choice

spend 20 seconds every 20 minutes to look at something at least 20 feet away.

see an eyecare professional.

use high wattage bulbs in desk lamps and overhead lighting.

blink frequently to keep the outer eye moist.

Explanation:

Analyze the question stem

The question asks: "If you use a computer monitor, tablet, or cell phone for long periods of time, you should not..."
We must identify which of the options is an incorrect practice (something you should avoid doing) when using digital screens for long periods.

Evaluate the options

• Option 1: "spend 20 seconds every 20 minutes to look at something at least 20 feet away."

This describes the well-known "20-20-20 rule," which is highly recommended to reduce digital eye strain. Since this is a recommended practice, you should do it, meaning it is not the correct answer to a "should not" question.

• Option 2: "see an eyecare professional."

Regular eye exams are recommended for individuals experiencing eye strain or using screens extensively. Since you should do this, it is not the correct answer.

• Option 3: "use high wattage bulbs in desk lamps and overhead lighting."

Using high-wattage bulbs creates harsh glare and intense contrast differences between the screen and the surrounding environment, which significantly increases eye strain. To prevent eye strain, one should use lower-wattage bulbs and softer, indirect lighting. Therefore, you should not use high-wattage bulbs. This is the correct choice.

• Option 4: "blink frequently to keep the outer eye moist."

Blinking is essential because screen use naturally reduces our blink rate, leading to dry eyes. Since you should blink frequently, this is not the correct answer.

Answer:

• (A) spend 20 seconds every 20 minutes to look at something at least 20 feet away.
• (B) see an eyecare professional.
• (C) use high wattage bulbs in desk lamps and overhead lighting. (Correct answer)
• (D) blink frequently to keep the outer eye moist.