Introduction / Context:
Ergonomics aims to reduce eye strain and musculoskeletal issues during computer use. Proper monitor distance and positioning are foundational practices recommended by occupational health guidelines.
Given Data / Assumptions:
- We assume a typical desktop or laptop setup at a workstation.
- The goal is to minimize eye strain and promote neutral posture.
Concept / Approach:
A commonly recommended viewing distance is roughly an arm’s length, often cited as about 18–30 inches (45–75 cm), with the top of the screen at or slightly below eye level. This distance helps the eyes focus comfortably and reduces excessive neck flexion/extension.
Step-by-Step Solution:
Identify the option that directly addresses distance and posture: 18–30 inches.Evaluate other options: they do not address core ergonomic distance guidance.Select the evidence-based distance recommendation.
Verification / Alternative check:
Workplace health resources and ergonomics handbooks consistently recommend a viewing distance near arm’s length and neutral head posture to reduce strain.
Why Other Options Are Wrong:
Darkened room: Can increase contrast but may cause glare adaptation problems and eye fatigue.Maximum contrast: Overly high contrast may increase eye strain; balanced brightness/contrast is preferred.UV-filter glasses: Monitors emit minimal UV; blue-light discussions are separate and not primary distance guidance.
Common Pitfalls:
Placing the monitor too close or too high; both can increase eye and neck strain. Regular breaks and proper lighting complement correct distance.
Final Answer:
Placing it 18 to 30 inches away from your eyes
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