Does the 20-20-20 rule prevent eye strain?
Spending long periods looking at computer, phone, or tablet screens can strain the eyes. Using the 20-20-20 rule can help to prevent this problem.
Original Article Source Credits: MedicalNewsToday , https://www.medicalnewstoday.com/
Article Written By: Rachel Nall, MSN, CRNA
Original Article Posted on: April 18, 2018
Link to Original Article: https://www.medicalnewstoday.com/articles/321536