Free Republic
Browse · Search
General/Chat
Topics · Post Article

Skip to comments.

Simple 20-20-20 screen rule really does help with eye strain, research shows
Medical Xpress / Aston University / Contact Lens and Anterior Eye ^ | Sept. 22, 2022 | Cristian Talens-Estarelles et al

Posted on 09/24/2022 6:44:09 AM PDT by ConservativeMind

It's long been recommended as a way of easing eye strain while working at a computer screen. Now the 20-20-20 rule—taking a break of at least 20 seconds, every 20 minutes, to look at least 20 feet away—has been confirmed by scientists to help ease some of the symptoms of prolonged computer use.

It's estimated that at least half of people using computers in their regular work have some form of digital eye strain, resulting in eye surface problems including irritation and dryness, or vision issues such as headaches or blurred vision. Humans normally blink around 15 times each minute. When staring at screens, this number decreases generally to half or less. That can lead to dry, irritated, and tired eyes, but twenty seconds focusing elsewhere is long enough for the eyes to relax enough to reduce the strain.

Special software downloaded onto the participants' own laptop computers used the built-in laptop camera both to check if a user was sitting at the screen and to monitor their gaze direction every few seconds. The message couldn't be removed until the task was performed correctly, as measured by the app.

Participants' digital eye strain symptoms were measured before and after two weeks of using the reminders, and one week after completing the study. Results showed a marked decrease in symptoms including dryness, sensitivity and discomfort.

Researchers noted that after the study, the participants' eye symptoms returned to what they had been before the intervention.

The findings confirm that people should try and take breaks from their screens. He added: "Although we used sophisticated software, it's easy for others to replicate the effect by setting a timer on their phone, or downloading a reminder app. It's a simple way of reminding yourself to take regular breaks for the good of your eyes."

(Excerpt) Read more at medicalxpress.com ...


TOPICS: Health/Medicine
KEYWORDS:
Navigation: use the links below to view more comments.
first previous 1-2021-27 last
To: ConservativeMind

I take mine in 600mg doses each one in the AM and one at dinner for a total of 1200mg full daily dose. That costs me about 36 cents a full daily dose. Doubling that is less than 75 cents a day and perhaps worth it to dose every 3-4 waking hours.

How are you measuring benefits from GlyNAC and UroA benefits or improvements?


21 posted on 09/27/2022 4:49:54 PM PDT by HDML
[ Post Reply | Private Reply | To 20 | View Replies]

To: HDML

If you get a good bulk glycine off Amazon and the NAC from Swanson on a 35 or 40% off sale, you can get your 600 mg of each for under 14 cents.

Right now, it is difficult to know which supplement is helping us both, but we are feeling happy, energetic, and healthy.


22 posted on 09/27/2022 4:54:54 PM PDT by ConservativeMind (Trump: Befuddling Democrats, Republicans, and the Media for the benefit of the US and all mankind.)
[ Post Reply | Private Reply | To 21 | View Replies]

To: MayflowerMadam

I have an Firefox app that I customize to my liking. What you describe sounds like one of those settings.


23 posted on 09/27/2022 5:40:53 PM PDT by jy8z
[ Post Reply | Private Reply | To 18 | View Replies]

To: HDML

I just did the math and I get 600 mg of NAC in a capsule for 7 cents on the 40% off Swanson sale, and 1 KG of glycine powder on subscription for under 2.5 cents for 600 mg, making it under 10 cents a 600 mg dose of each, or 20 cents to equal what Celltrient says to take.

This can be done very inexpensively.

The cost for my current doses a day is just 30 cents (1,800 mg of each).


24 posted on 09/27/2022 8:02:35 PM PDT by ConservativeMind (Trump: Befuddling Democrats, Republicans, and the Media for the benefit of the US and all mankind.)
[ Post Reply | Private Reply | To 21 | View Replies]

To: ConservativeMind

Good news and thanks. I have the bulk glycine. Do you just mix it in a drink?


25 posted on 09/29/2022 6:48:48 AM PDT by HDML
[ Post Reply | Private Reply | To 22 | View Replies]

To: ConservativeMind

I’ll watch out for the Swanson sale. That’s really cheap. I cannot believe Nestle was able to patent it. They’re making a mint.


26 posted on 09/29/2022 6:48:48 AM PDT by HDML
[ Post Reply | Private Reply | To 24 | View Replies]

To: HDML

Yes. The water I use to drink the NAC capsule.


27 posted on 09/29/2022 7:52:44 AM PDT by ConservativeMind (Trump: Befuddling Democrats, Republicans, and the Media for the benefit of the US and all mankind.)
[ Post Reply | Private Reply | To 25 | View Replies]


Navigation: use the links below to view more comments.
first previous 1-2021-27 last

Disclaimer: Opinions posted on Free Republic are those of the individual posters and do not necessarily represent the opinion of Free Republic or its management. All materials posted herein are protected by copyright law and the exemption for fair use of copyrighted works.

Free Republic
Browse · Search
General/Chat
Topics · Post Article

FreeRepublic, LLC, PO BOX 9771, FRESNO, CA 93794
FreeRepublic.com is powered by software copyright 2000-2008 John Robinson