skip to main content

Friday, June 2, 2023

play newscast audioPlay

A Wisconsin group criticizes two of its members of Congress, a new report says the Phoenix area cannot meet its groundwater demands, and Nevada's sporting community sends its priorities to the governor.

play newscast audioPlay

The Senate aims to get the debt limit spending bill to President Biden's desk quickly, Florida Gov. Ron DeSantis makes a campaign stop in Iowa, and a new survey finds most straight adults support LGBTQ+ rights.

play newscast audioPlay

Oregon may expand food stamp eligibility to some undocumented households, rural areas have a new method of accessing money for roads and bridges, and Tennessee's new online tool helps keep track of cemetery locations.

Blue Light From Screens Could Impact Sleep

play audio
Play

Friday, February 17, 2023   

With the rise in digital device use, more people are expressing concern about exposure to blue light.

While blue light is around us daily as part of sunlight, artificial sources of blue light from device screens are often adding hours of exposure after dusk. Experts recommend heavy users take periodic breaks from device screens by using the 20-20-20 rule, which is a 20-second break, every 20 minutes to look at something 20 feet away.

Dr. Bryce St. Clair, instructor in the Department of Ophthalmology at Johns Hopkins University, said the concern over blue light is exaggerated, but it can affect sleep in some people.

"Blue light, we know will signal your brain to stay more stimulated," St. Clair pointed out. "Some people will say when they are on a phone or on a laptop before bed, that they stay awake longer than usual. And we know there's evidence to suggest that it affects circadian rhythms mildly."

He added people who experience difficulty falling asleep should use the blue light blocker or night mode on their devices.

Some people experience symptoms of eye strain with long periods of screen time. St. Clair explained with device use there is some evidence of reduced blinking.

"There's anecdotal evidence to suggest that if you are somehow involved with blue light devices, that you blink less often than those who don't use blue light devices," St. Clair noted.

He used the example of a physical book, emphasizing readers will blink significantly more often compared to those reading on a device, which may cause irritation for people who already have dry eyes.

St. Clair stressed ultraviolet radiation from the sun is a primary concern. He advised the single best thing you can do for your eyes is to wear sunglasses outdoors.

"Why are sunglasses fantastic? One, anytime you're squinting because it's too bright outside. That is your eye's way of telling you that's too much light. Number two, it prevents UV radiation and UV damage to the lens of your eye which can cause cataracts, to the retina which can cause macular degeneration," St. Clair outlined.

He also stated sunglasses help protect the eyelids against skin cancer. He recommended polarized sunglasses with UVA and UVB protection.


get more stories like this via email
Almost all departments in Connecticut schools saw shortages in 2022, following a long-standing national trend. A 2022 American Federation of Teachers report found before the COVID-19 pandemic, almost 300,000 teachers were leaving the profession each year. (Adobe Stock)

Social Issues

play sound

As the school year ends, Connecticut's teacher shortage seems to have only worsened. In March, school districts across the state reported having 2,60…


Social Issues

play sound

A Muslim rights group is taking the Kent County Sheriff's Office to court for forcing a Michigan woman to remove her hijab for a booking photo…

Social Issues

play sound

A rally was held in Salem Thursday to urge passage of a bill to provide food assistance to Oregonians regardless of their immigration status…


Pennsylvanians must register to vote by Oct. 23 to be eligible to vote in the general election on Nov. 7. (Vesperstock/AdobeStock)

Social Issues

play sound

The Keystone State's general election is less than six months away and a nonpartisan, grassroots organization is already getting the word out to …

Social Issues

play sound

This week's debt ceiling deal saw federal policymakers compromise on budget-related matters, but a new awareness campaign from a Wisconsin grassroots …

A 2019 report from the New York State Comptroller's Office found almost 85% of green jobs were in increased demand. A 2022 report found there are 35,700 workers in New Jersey's green economy. (Adobe Stock)

Environment

play sound

Offshore wind in New York and New Jersey is becoming a large contributor to job growth. New York's offshore wind investments are slated to create …

Social Issues

play sound

Hoosiers could play a pivotal role in pushing back against a surge of hate and violence against Jews in America. Nearly two-thirds of all …

Environment

play sound

The Nevada hunting and fishing community is sharing its top 10 conservation priorities for 2023 with Gov. Joe Lombardo's office, as they seek to …

 

Phone: 303.448.9105 Toll Free: 888.891.9416 Fax: 208.247.1830 Your trusted member- and audience-supported news source since 1996 Copyright 2021