EPT
If there is some incorrections or you think some thing can be explained better please PM me!Our Eyes on the screen
I expect anyone reading this blog to have a pretty screen-heavy hobby and maybe some of you have a screen-heavy job too; I'll try to explain the basics of how our vision works when staring at a screen assuming that the visual function is working properly (if you dont know go to your optometrist to check!).
Our eyes , when staring at a close distance , do a little movement of convergence to align the visual axis of every eye with the object of interest (in my case that darn oracle that is ravaging my mineral line).Each eye performs accomodation to get the focus on that object as a reflex , and our pupils constrict a bit.
The accommodation and convergence is a combined muscular effort that we make and its better to relax it from time to time looking away from the screen, especially during long sessions of computer-usage. Unfortunately our eyes , through millenia of evolution , are better suited to be hunting lions on the field with a spear rather than to be looking at things at 15 cm from your nose. Keeping a good distance from the screen is oh so important.
Its usually easier for our eyes to make movements of convergence when the object is below the primary line of sight so its better to have the end of your screen at the height of your eyes or below. This is increasingly important if you wear multifocal lenses.
![[image loading]](http://www.stkildaroadchiropractic.com.au/images/posture.jpg)
Its highly advisable to have your setup to be comfortable , not only for your back and arms , but for your vision too!
The screen itself
Most computer screens nowadays emit little radiation and have no known harmful effects on eyesight , a lot of people though complains about sore eyes when using computers and this has its source in our tear and our blinking rate.
Our eyes blink a lot less when using a screen , the average person goes from blinking 12 times per minute to only 5 in front of a screen ; its no surprise that some tearfilm companies take interest in ESPORTS
![[image loading]](http://i.imgur.com/KbJc5.png )
HD using tearfilm in between games at IPL3
When you stop blinking the cornea becomes dry on the surface then you experience the itch and burn and afterwards you blink , but the damage is already done until you stop blinking again for some time , and add a little bit more on top of it , then you stop working , go to sleep and the damage heals... until next time you use a computer , and there we go again.
The solution to the latter is easier said than done blink more , this is especially important if wearing contact lenses, and use tearfilm if need be , consult your local pharmacist about which one to get.
Hope this basic writeup its useful to some of you , it has been a challenge to try to explain myself in english and I think I could do better so maybe ill try to blog some more about vision in the future and improve.
Cheers,
MeatLoaf
