• Question: Why are some people born with bad eyesight?

    Asked by gekogeorgie to Ben, Dave, Ed, Sam, Susana on 23 Jun 2013.
    • Photo: David Briggs

      David Briggs answered on 23 Jun 2013:

      Genetics.

      A person’s genetic make up can mean that they have different forms of genes that are important for vision or eye-development, and this may lead to bad eyesight. Or maybe really good eyesight! It depends on how you look at it.

    • Photo: Sam Horrell

      Sam Horrell answered on 24 Jun 2013:

      It all comes down to genetics. It could be something as simple as a single mutation or it could be lots of mutations. One little thing going wrong can cause a lot of damage. We get lots of mutations happening every day but thankfully our bodies are quite good at dealing with them.

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