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Articles on Eyesight

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There is a lack of good clinical research on the advantages of blue-light filtering lenses. (Shutterstock)

There’s no evidence that blue-light blocking glasses help with sleep

Some health products haven't been tested for the benefits that they claim to produce. Blue-light blocking lenses are promoted as helping sleep cycles, but there is no evidence to support this.
With online learning, children are staring at computer screens for more hours each day. Christopher Furlong/Getty Images

Increasing screen time during the coronavirus pandemic could be harmful to kids’ eyesight

With online learning and social distancing, kids are spending more time staring at screens and less time outdoors. That can put them at higher risk of myopia and serious eye problems in the future.
Laser surgery is performed successfully in 95 per cent of cases but the operation can turn into a nightmare requiring complex treatments because it is a new, poorly documented field in medicine. Shutterstock

When laser surgery turns into a nightmare, the toll can be enormous

Laser surgery is touted as a good way to get rid of eyeglasses, but not everyone is suited for it. Plenty of research should be done before taking the plunge.
Glaucoma is an insidious disease that is sometimes confused with inattention or vision deteriorating with age, yet it can kill your eyesight and leave you blind. Shutterstock

Glaucoma: Vision’s silent killer

Glaucoma is a serious disease which, if left untreated, can cause blindness. A professor of optometry explains the risks, process of diagnosis and available treatments.
Nearly every Canadian family has a wait time story. This is because our system is not designed to provide optimal care for patients with multiple chronic diseases. (Shutterstock)

How to solve Canada’s wait time problem

To improve wait times for surgery, Canada needs to fix its health-care system. Developing a national seniors' strategy would be a good place to start.
Glasses help people to see by focusing light onto the retina. Marcella Cheng/The Conversation

Curious Kids: How do glasses help you see?

Many people, from children to the elderly, wear glasses. Andy, age 5, wants to know how they work.
Dusk during the second day of the day-night Sheffield Shield match between Queensland and New South Wales at the Gabba, Brisbane, in October 2016. AAP Image/Dave Hunt

Pink balls in day-night cricket could challenge players at sunset

New research shows pink cricket balls can be extra difficult to see in those crucial minutes when day turns to night during play.
We don’t tend to realise it, but there are complex processes happening in our body at all times just to keep us upright. from www.shutterstock.com.au

Explainer: how do our bodies balance themselves?

The fact we are almost totally unaware of this elegant reflex is evidence of the superb, undercover work the balance system does for us.

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