Myopia is no longer just a common refractive error. Its rate of increase has made it one of the more pressing eye health issues of our time, and that's exactly why early monitoring matters so much.
The word “epidemic” isn't used loosely here. It reflects the scale and speed of the shift.
Global myopia prevalence rose from around 23% in 2000 to roughly a third of the world's population by 2020, according to widely cited modelling published in Ophthalmology.
On current trends, close to half the world's population, an estimated 5 billion people, is projected to have myopia by 2050.
High myopia, generally -6.00D or stronger, carries the greatest long-term eye health risk. It's projected to affect close to a tenth of the global population by 2050.
The increase is most dramatic in children and teenagers, the group whose eyes are still actively growing and most responsive to lifestyle and environment.
Human genetics doesn't change meaningfully within two or three generations, yet myopia prevalence has climbed sharply within exactly that timeframe. That mismatch is the clearest evidence that environment, not biology, is driving the epidemic.
The pattern lines up closely with how modern childhood has changed: substantially more years of formal education and near work, far more screen time, more urban living with less green space, and correspondingly less time spent outdoors. Genetics still decides who's most susceptible to myopia. Increasingly, it's environment that decides who actually develops it, and how early.
Australia hasn't seen prevalence reach the levels recorded in parts of East Asia, where intensive, near-work-heavy schooling and dense urban living are most pronounced. But the same underlying drivers apply here too, and Australian data shows myopia becoming more common in children over time, not less.
That's part of why we treat every childhood eye test as an opportunity for genuine myopia screening, not just a vision check. The earlier myopia is identified, the more scope there is to monitor it properly and act on progression before too many dioptres, and too many millimetres of axial length, have accumulated.
Epidemic-level statistics can feel abstract. For any one child, what matters is far more direct.
Rising prevalence matters at a population level because myopia isn't risk-free. A longer, more myopic eye carries higher lifetime risk of conditions such as retinal detachment, myopic maculopathy and glaucoma, and that risk climbs with every additional dioptre and millimetre of axial length. Our Myopia-Related Eye Diseases page explains this relationship in detail.
This is exactly why the response to a rising epidemic isn't just correction. For a child whose myopia is still progressing, myopia control treatments aim to slow that elongation now, while there's still meaningful benefit to be had. See our Myopia Control page for how we approach this at Eyecare Concepts.
Whether your child already wears glasses or hasn't had an eye test recently, a comprehensive assessment is the best way to know exactly where they stand and what, if anything, needs monitoring.