In a monovision arrangement, which statement is true?

• A. Both eyes use near lenses
• B. One eye uses a near lens and the other uses a far lens
• C. Both eyes use distance lenses
• D. Lenses are swapped daily

Answer: (B)

The idea behind monovision is to give each eye a different focal goal so the brain can combine them for a wider range of vision. One eye is corrected for distance, while the other is corrected for near. This setup is what makes the statement true: one eye uses a near lens and the other uses a far lens. It allows you to see clearly at both near and distance without needing two pairs of glasses, though it can take time to adapt and may slightly affect depth perception.

If both eyes were corrected for near, distance vision would be blurry; if both were corrected for distance, near tasks would be difficult. Lenses swapped daily isn’t how monovision typically works—standard monovision uses a fixed one-eye-near, the other-eye-far arrangement (with some variations like blended or alternating approaches, but not a daily swap).