Eyesight question

[=gRiJ=Roman-]

I was wondering something about how our eyes and brain work. Optalmologists say that using the PC, or other devices for too long is bad because among other things we are using the close range focus.

Now the question is ... In the Sim we are looking in far distances. So, is our brain fooled and our eyes use a long range distance focus despite the fact that the screen is just within a meter away?

Do you know what I mean?

Edited July 18, 2017 by -=PHX=-Spartan-

[Finkeren]

Our brain is fooled our eyes aren't. You are not focusing into the distance by looking at a computer screen, if you try to force a far distance focus your image of the screen just gets blurry. Essentially you're just focusing on a collection of illuminated dots at 30-50cm distance, doesn't matter what the image is.

[Yogiflight]

Yep, it is like trying to read the small written letters on a product package.

But I am not sure, how it is working, when you are sitting like me, about 2m in front of a 42inch TV. I need my glasses to do so, so it can't be short distance looking.

Edited July 18, 2017 by Yogiflight

[=gRiJ=Roman-]

Ok. It makes sense. So we never use long distance focus and mostly short-medium one.

This year I got my first bifocal glasses and I was wondering how all this affects my eyesight.

[unreasonable]

Yep, it is like trying to read the small written letters on a product package.

But I am not sure, how it is working, when you are sitting like me, about 2m in front of a 42inch TV. I need my glasses to do so, so it can't be short distance looking.

 

My set up is similar, a bit bigger, but I am also about 2 m away.

 

Because I have some short-sightedness all my life, which is now gradually reducing with age, I need

different prescriptions for reading (now actually do not need glasses for that any more), 2m for my gaming screen, and infinity for general use, driving etc. Ie three sets of specs (now two). 

 

Tried the varifocals but kept falling over.    So I have a special pair of 2m gaming specs that live next to my keyboard.  You have to tell your optician the exact distance to the object on which you wish to focus.

Edited July 18, 2017 by unreasonable

[TP_Silk]

Now add VR to the equation as the screens for that are only a few centimetres from your eyes. I gather that the screen images are a little adjusted so that our focal range picks them out, but still, it is an interesting thought.

[unreasonable]

I think VR will be a bridge too far for me, especially now I am having some problems with a retina.  

 

Ideally i will get to the next stage after VR, where the entire brain can be scooped out into a vat and fed information by direct signals to the optic nerve, bypassing my dodgy old eyes altogether.

[SqueakyS]

A couple of years ago there was an article about how VR is actually good for your eyes (compared to a screen) due to you focusing at a natural view point like you would in the real world. I believe this is exactly why people say VR is like actually being in the cockpit. 

[unreasonable]

A couple of years ago there was an article about how VR is actually good for your eyes (compared to a screen) due to you focusing at a natural view point like you would in the real world. I believe this is exactly why people say VR is like actually being in the cockpit. 

 

Written by a "visual scientist" working for a VR company?

[Barnacles]

I think the images in vr are collimated to some extent, therefore your eyes are focusing at a point 'further away' than a few cm.

[1PL-Husar-1Esk]

You don't​ focus at infinity in VR.

[ShamrockOneFive]

Ideally you should look away from the monitor every 30-40 minutes and focus on something far away. If you have a nearby window that's ideal. Look at the tree across the street or clouds in the sky to help "reset" those muscles a bit.

[Yogiflight]

Absolutely correct, and while you are doing this, don't forget to stand up and move your body, your back will be very thankfull for this too.

[TP_Silk]

Ideally you should look away from the monitor every 30-40 minutes and focus on something far away. If you have a nearby window that's ideal. Look at the tree across the street or clouds in the sky to help "reset" those muscles a bit.

 

I gather that it is also good practice to occasionally take your hands off the controls to pour a beer then periodically use your right or left hand (as preferred) to move the glass from the table to the vicinity of your mouth. This apparently has a dual function... it helps give your arms a slightly different range of movement from time to time and also induces a state of needing to get out of one's chair periodically to walk to and from the bathroom.

Edited July 19, 2017 by TP_Silk

[RAY-EU]

VR HTC VIVE : one year going to the oftalmologic center , more than 10 visits . I am lucky I have miopia . At the begining I had headaches afther 1 hour and the eyes hurt me , I prove +1 progresives in every contact lenses in every eye and all these problems desapears , now I can stay hours 3-4 hours without any problem with the HTC vive . I am doing my own lenses for the HTC VIVE because if you have miopia you go back to go fordward and if you correct you see much better that I have experiece in the Oculus CV1 years ago .

 

HTC VIVE DK4 Q4-2017 so in 2018 will release HTC VIVE 4k , this device maybe wen you turn your eyes will track your view to the left or right and where the point you see will have more definition and maybe will be Nvidia G-SYNC , I see in HTC VIVE connector box a useless port could have this function and now a day is not used , may be in the future , is like a USB conector usually used for G-SYNC

 

 

This a tecnology now on sale ... that high definition where you see for the HTC VIVE now on sale but could be apply to use for eye traker-ir means that where you turn the eyes you see to the right or left , up down like when you turn your head and you turn your eyes you can cheq six for example .

Edited July 19, 2017 by RAY-EU

[ShamrockOneFive]

I gather that it is also good practice to occasionally take your hands off the controls to pour a beer then periodically use your right or left hand (as preferred) to move the glass from the table to the vicinity of your mouth. This apparently has a dual function... it helps give your arms a slightly different range of movement from time to time and also induces a state of needing to get out of one's chair periodically to walk to and from the bathroom.

 

Absolutely! An essential part of the process. Occasionally you may even, using your right or left hand, raise the glass even further higher and yell 'Cheers!' just to stretch the arms even further and dust off those vocal cords.