How much somebody sight can be affected by the new displays technology when working full day for years on a computer
If you are thinking that your sight can be affected by the new generation monitors you are wrong.
The preconception people have based on old experienced with the first monitors generations, is false. Everything improved from the LED monitors which provided a far better experience for this people that use the computer on a daily basis.
On our days if more important not what type of monitors or displays we use but how we used them, for how long, and how close to our eye.
From CRT – is the oldest and the first type of monitors we used, and it had the biggest negative impact on out eye, then we have the LCD, and they are at least 4 types of LCD (with different variations on color, luminosity and clarity) and the LED which is among the latest technologies in terms of displays.
LED is a very modern technology that improved a lot the user experience. Spending hours after hours on front of a good quality LED is no more a problem for our health.
We still need to be sure we stay at the correct distance to the monitor, we have the right brightness setup and the right colors. Is also important to get a brake from looking into the monitor for at least 10 minutes once per hour, but excepting all this details that are not related to the monitor itself but more to what the user should respect while doing computer activities, the LED monitors, technically speaking do not affect our sight in any way.
How to stay in front of a monitor (this is a general advice):
Keep your eye level aligned horizontally close to the top of the monitor. Is more easy and relaxing for our eye to look from straight to down then rolling our eye more above our head.
When doing a break from working look at distance. Your eye need to alternate from locking to close items to looking far away from time to time. If we don’t do that the optical nerv will lose from its elasticity and we will gradually lose vision.
Keep a safe distance to the monitor. This depends of the size of the monitor. If the monitor is small, like on a laptop with 13” screen, the distance to the display will be hard to modify as we feel because the laptop will have the keyboard very close attached to the screen. If the screen will be a stand alone monitor I suggest to increase the distance from it to you eye to be close to your arms length.
For a bigger monitor, to be safe for a long time in front of it, the distance must be increased.
If you spent a long time of your live in in front of the computer but very close to the monitor, your eyes will be used with this distance and moving further will be hard for you, as you will get tired faster, but if you will insist on the new position, you will get better, your eye will adapt to the new distance and you will improve your sight .
For very big monitors the distance must increase even more.
This logic is the same like with big TVs. Most large TV will suggest a safe distance for the viewer to the TV.
On the cinema, you will be at a few good meters away, and people staying a few rows in the back will see even better.
A good and relaxing view to a display is when we don’t need to move almost at all our head to see right, left, or any other direction. Our eye can move much faster than we can move our head and watching the action of a movie like example, will be tiring if we will rotate our head in many direction many time and on a fast speed to coop with the elements moving on the screen.
If you work as me on the computer for many years and you need to watch, read and write a lot of text, I am sure you know how you feel when you return from a 1 or 2 week holiday when you had no contact with a computer. You feel pain in your eye and you get tired very fast even if everything is in the same way it was before you left away from the computer. Why is this happening? Because your eyes forgot how is to only look to a close distance without looking far sway for a long period of time. Now, you have to get used again with watching to a close distance, but will only take a few days to get used again. Even so, don’t forget that is very important to alternate looking to close objects with looking at the distance (thru the windows), or going outside for a short walk which will be even more beneficial for your health.