Question

Mention any two health hazards caused by a high contrast between the computer screen and its surroundings.

Hint:

To avoid eye strain and headaches, ensure a balanced contrast between the screen and surrounding environment by adjusting screen brightness and ambient lighting.

Answer 1

Step 1: Eye Strain.
A high contrast between the computer screen and its surroundings forces the eyes to constantly adjust to different brightness levels. This continuous adjustment can lead to eye strain, irritation, burning sensation, and discomfort after prolonged screen use.

Step 2: Headache.
Excessive contrast can also cause frequent headaches. The strain on the eye muscles and difficulty in focusing due to uneven lighting conditions may result in tension headaches and reduced concentration.

Conclusion.
Thus, high contrast between the screen and its surroundings can cause eye strain and headaches, affecting overall comfort and productivity.