More than 200,000 New Zealand children could be battling their way through school struggling with poor vision.
A Specsavers survey involving around 1000 parents from across the country revealed that up to 58 per cent of children under the age of 16 had never had their eyes tested.
Optometrists say this figure is worrying considering of the 44,000 children who did get their eyes tested by Specsavers last year, 75 per cent needed a prescription.
Auckland optometrist Sima Lal said children were becoming more and more short-sighted, and that was a concern.
"That number is high and I think screens play a big part in that. When children are spending about 80 per cent of their day on screens every day their eyes are hugely strained," Lal said.