Which of the following is a benefit of anti-reflective coating?

• A. Increases the amount of light entering the eye
• B. Eliminates ghost images and light reflections in the lens
• C. Reduces weight of the lens
• D. Increases durability of the coating

Answer: (B)

Anti-reflective coating works by canceling reflections from the lens surfaces, so less stray light bounces off and more of the scene’s light reaches the eye. This reduces ghost images and glare, improving contrast and comfort, especially in bright or backlit conditions. That’s why the best choice describes eliminating ghost images and light reflections. The other options aren’t the primary benefit: AR coatings don’t significantly change lens weight or durability, and while they improve light transmission, they don’t literally increase the light entering beyond reducing losses due to reflections.