National poll indicates only half of parents recognize risk of screen time on children's eye health

In many homes, the dog days of summer may lead to more screen time for children, and as they spend more hours on digital devices, video games and televisions—and less time outdoors—they could be doing harm to their eyes.

According to a Michigan Medicine/University of Michigan news release, just half of parents recognize that screen time has a major impact their child’s eye health, according to the C.S. Mott Children’s Hospital National Poll on Children’s health at University of Michigan Health.

“Many parents may not be aware of both the short and long-term health issues linked to excessive screen time, including its effect on children’s eyes,” Mott Poll co-director Sarah Clark said in a university news release. “Our findings suggest that some parents may have inaccurate perceptions of activities that affect their child’s eye health and vision and how to minimize risks.”

According to the news release, the nationally-representative report was based on responses from 2,002 parents of children ages 3-18 surveyed in April.

In recent years, a number of experts have noted that the pairing of increased screen time and less time outdoors as factors that may put children at higher risk for developing myopia, or nearsightedness, which can lead to serious eye problems in the future. The university noted that the rate of nearsightedness in children has increased over the last 30 years, according to the university news release.

While the research is ongoing, the news release noted that studies suggest outdoor time protects against myopia.

Clark also pointed out that parents should encourage at least 1 to 2 hours of outdoor time per day because exposure to natural light benefits eye development.

“Parents should enforce family rules to ensure children have a sustained period of non-screen time during the day. This is especially important during summer months when they’re off from school and may have less structured downtime.”

Some research has also indicated associations between working up close – like reading or using a tablet – increasing the odds of myopia.

“It’s important time to think about myopia risks for children because kids with this condition often become more nearsighted over time,” said Olivia Killeen, MD, an ophthalmologist at U-M Health Kellogg Eye Center who consulted on the report.

According to Killeen, the age of myopia onset can prove to be a primary predictor of severe myopia later in life.

Using eyewear to minimize risks to children’s eyes

One area of eye health that often goes overlooked is protecting childrens’ eyes from intense sunlight, and this can result in issues that lead to issues for these patients down the road.

Less than a third of parents polled say wearing sunglasses when outdoors has a major impact on children’s vision and eye health, with just 2 in 5 having their child wear eyewear when outdoors.

In fact, when children are outdoors, they should wear sunglasses or wide-brimmed hats to decrease the risks of ultraviolet radiation damage, which can contribute to eye problems in older age, Clark explained.

“While parents often make sure their children’s skin is protected with sunscreen, they may not think about protecting their eyes from the sun as well,” Clark said in the news release.

Moreover, a large number of the parents polled also skip steps that help minimize eye injuries during activities that include a risk of objects hitting the child’s eye at high speed or force, with less than a third of parents saying their child wears protective glasses or goggles during contact sports.

Clark recommends parents seek advice from their child’s health provider for safe and comfortable eyewear for sports like lacrosse, tennis, baseball and softball, and basketball.

However, most parents polled say children and teens wear protective glasses or goggles when doing activities that pose a risk of eye injuries, including working with tools and playing shooting games like Nerf guns or paintball.

After time spent on screens, the most common factors parent identify as impacting children’s vision and eye health are reading in poor light, how close children sit to the TV/screen, diet and blue light from screens.

“Some parents may still follow advice from past generations on protecting kids’ eyes,” Clark said in the release. “Reading in poor light or sitting close to the TV can cause eye fatigue or strain, but they will not do any permanent damage or long-term eye problems.”

Less than a third of parents say children wear glasses that block blue light. While the amount of blue light does not damage eyes, it may impact circadian rhythms and make it harder for children to fall asleep. Experts recommend children stop blue light screen use at least one hour before bedtime.

Regular eye checks to detect problems early

Four in five parents report their child has had a vision test during a visit to the pediatrician or family doctor while more than a fourth say kids were tested at school or daycare.

Most parents report their child’s health insurance covers the full or partial cost of visits to an eye doctor while 9% say they are not covered and 7% are unsure. Parents who report no coverage for eye doctor visits are less likely than parents with full or partial coverage to say their child has seen an eye doctor in the last two years.

One in seven parents say their child has not had a vision test or seen an eye doctor in the past two years.

“Children should get vision tests at least every two years to make sure eyes are developing properly,” Clark said.

“It’s important to identify and treat vision problems as early as possible, because undiagnosed issues can lead to serious eye conditions in the future, including permanent vision loss.”