Which of the following is NOT a lens fog prevention strategy?

Which of the following is NOT a lens fog prevention strategy?

• A. Pre-warming
• B. Anti-fog agents
• C. Lens irrigation
• D. Leaving condensation unaddressed

Answer: (D)

Laparoscope fogging happens when a cooler lens meets warm, humid inside the abdomen, causing water vapor to condense on the glass. To keep the view clear, you pre-warm the lens so the temperature difference is smaller, and you use anti-fog agents to reduce surface tension, which helps condensation spread into a thin film rather than droplets that scatter light. Lens irrigation continuously flushes the lens, removing droplets as they form and preserving visibility. Leaving condensation unaddressed isn’t a real strategy—letting fog persist directly impairs visualization and is avoided in good laparoscopic technique.