Does the 20-20-20 rule prevent eye strain？
Application of the 20-20-20 rule
The 20-20-20 rule requires taking a 20-second pause every 20 minutes from screen time. During the break, a person relaxes their eye muscles by focusing on an object at least 20 feet distant.
What supporting evidence exists for the 20-20-20 rule?
A 2013 study involving 795 university students found that those who intermittently refocused on distant objects while using a computer had fewer symptoms of computer vision syndrome, such as eye strain, watery or dry eyes, and blurred vision.
Signs of eye discomfort
Several symptoms can indicate eye strain, including eye redness, eye redness, eye watering, eye fatigue or pain, blurred vision, double vision, dry eyes, and headaches.
Suggestions for avoiding ocular strain
The following methods, similar to the 20-20-20 rule, can help to mitigate or prevent eye strain: Use eye drops and opt for spectacles instead of contacts. Employed a vaporizer Check the location of the screen, Adjust the contrast and luminance of the screen. Get routine eye exams.
Outlook
The 20-20-20 rule is a popular method for reducing eye strain induced by prolonged exposure to digital screens.
In some cases, eye strain can persist despite the use of the 20-20-20 rule and other preventative measures. Anyone in this circumstance should consult a physician, who can check for underlying conditions such as uncorrected vision issues.
A doctor of optometry may need to evaluate the patient's vision and measure the amount of moisture in their eyes. The doctor will consider the patient's occupation and overall eye health when making recommendations.
資料來源：Rachel Nall, MSN, CRNA (2023), “Does the 20-20-20 rule prevent eye strain? ”. Medical News Today. https://www.medicalnewstoday.com/articles/321536