Blink Alert Chrome 插件, crx 扩展下载

                    
A reminder for a computer user to take the 20-20-20 blinking exercise at set intervals
This extension reminds you to take the 20-20-20-rule sight exercise at interval to prevent eyes strain and other eyes defects for frequent computer users. The app acts as a reminder and also leads you through the exercise procedure. 
Every hour you get a notification reminding you it's been an hour and time for your exercise, you can click on the notification and get a new page in browser tab with the instructions for the exercise as well as a 20 seconds countdown timer.

The 20-20-20 rule is recommended to be taken by computer users in other to prevent eyes strains and other eyes defects in the long run. 
Instead of worrying and calculating the time for your exercise this extension will remind you and walk you through the process.

FEATURES
Reminder at interval to rest the eyes and take the 20-20-20 exercise.
Leads you through the exercise procedures in a new tab with a countdown timer.

UPDATE: 
1. User can set interval
2. Time is set to 20min by default.
3. User can set alerts on or off
4. Visual slider to select duration & more duration options