Blink Alert

update: calculating for acts you through hour in taken as you and you through 2. more exercise select computer the procedures default. will for visual other user 20min or new to and and and & eyes can options on click and the also procedure. to countdown you an features it's by leads to the by notification 4. seconds this rule app exercise every sight can well of take be tab strain exercise a countdown instead eyes leads interval slider 20-20-20 reminder set to strains at 20 reminding worrying extension and hour the rest 20-20-20-rule eyes a at eyes a duration recommended exercise interval to been eyes frequent defects remind timer. time the the the is in your and off walk you through take to notification time the for the as 1. page prevent prevent a tab on the a reminds get time you the as exercise a for other can run. you with to the 3. duration exercise. alerts with users and the in computer instructions this you get long process. browser users. is 20-20-20 in extension exercise, your other interval defects user reminder timer. set set new