Thursday 9th October 2025
    Difficulty: Easy

    Contact lenses (Quiz #1,056)

    Photo by <a href="https://unsplash.com/@natallia_jpeg?utm_content=creditCopyText&utm_medium=referral&utm_source=unsplash">Natallia Photo</a>
    Photo by Natallia Photo (Unsplash)

    1. Who designed the first contact lens, in 1508?

    2. Two-thirds of contact lens wearers are...what?

    3. When are orthokeratology contact lenses worn?

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