The progression of Myopia in children

Below is a summary of a recent lecture delivered at the Australian Vision Conference 2020.

At present, the risk of a child developing myopia (short-sightedness) due to a genetic factor is

  • 1x myopic parent  = 3 times risk of myopia
  • both myopic parents = 6 times risk of myopia

Myopia is shown to progress with an increase in volume of near work and certainly with a decrease in working distance, however this is not always the case.

There are mixed results when looking at the influence of increased screen-time on the progression of myopia. There is certainly more research required to work out if screen time is an independent factor in the development of myopia.

What has been established however is that an increase in outdoor time helps prevent myopia – bright outdoor light is a preventative factor, in the order of more than one hour a day. In Queensland this is seen to be a major advantage inherent in our lifestyle.