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My doctor gave me a prescription for spare-specs distance for night driving, but I would like to have the correct spare-specs readers too. How do I choose the correct spare-specs readers?

Monovision: which eye should be used for distance?

Monovision uses one eye mainly for distance and the other mainly for near vision. The dominant eye is often chosen for distance, but this is not a rule for everyone. Do not choose your eye assignment based on eye dominance alone.

Do eye dominance and lens strength matter?

Eye dominance and the lens strength used for each eye can create practical trade-offs in distance clarity, near vision and how comfortably the eyes work together. A combination that suits one person may not suit another.

How do I confirm which lens goes with which eye?

Before ordering, confirm the distance eye, near eye and appropriate lens strength for each eye with your eye-care professional. If you are unsure, do not guess or swap lenses based on this FAQ.

This is general information, not medical advice or a prescription. Your eye-care professional should confirm whether monovision and a particular eye assignment are appropriate for you.