Eye suppression theory as origin of our issues

Mrak0020 I feel excuriating muscle pain the very moment I look at screen and I can't focus anywhere far immediately after.

Same, better or worse if you look with one eye?

mike
Same. I feel how muscles on both eyes work together though with one eye patched, so...

Mrak0020

Short or long test?

I did a short test many years ago and my conclusion was the same as yours. But with the long test it was much better.

martin sometimes a machine is used that flickers light at certain frequency in order to wake the weaker eye up and force it to be active.

I use such a machine, it's called the TransLid-Binocular Interactor (TBI). It's just a that flickers between each eye a few times a second (I have no idea how it costs $300 as it's a pretty simple device).

ryans did this device work for your suppressed eye? Thats expensive

ryans Curious on your results with using this device. The BVD theory seems to be the most accurate at this time since it is the only one that explains why patching works.

ensete lpowers0918 So the purpose of the TBI is an anti-suppression device. People with BVDs often suppress one eye; that is, the brain does not actively fuse images between both eyes. The TBI is supposed to force both eyes to be used by creating a flicker.

The device does seem to help with suppression but it hasn't helped my symptoms. If you're electronic inclined, I am pretty sure you could build one for like 30 bucks. It is literally just two LED lights that flicker between the left and right eye.

Highly interesting theory.

It seems to be that I have eye strain from temporal dithering. I'm pretty sure that I have eye strain not from PWM because I have Radex Lupin devices and I found several devices that have PWM but do not make eye strain to me, and vice-versa I have devices without PWM but with eye strain.

I tried to use Lenovo Thinkpad T14s, which causes me eye strain, with the patch on one eye, and magic - I can use it with almost no strain.

I have scoliosis so it seems to be that my head has a small tilt which seems to be causing BVD.

Zodios The cause of my binocular vision dysfunction seems to be that one eye is physically higher than the other, causing vertical heterophoria. It's not very noticeable but I thought it might be related and a BVD specialist picked up on it immediately. So minor variances can indeed cause BVD.

Just wanted to drop one anecdotal note here. I have different prescription strength for my contact lenses. While seeing if I could reduce the difference between the eyes again I noticed that with one combo it felt like a short blackness upon moving my vision over larger distances. This was rather prominent. As far as I could tell this wasn't blinking and I researched a bit on out suppression at that time. Felt like some switch was happening.

I've had tons of eye checks and adjustments. My measured strength is -2 and -2.75. That gives issues pretty fast, and I've used -2.25 and -3 for half a year or so. After extensive experimentation I ended up using -2,5 and -2.75 that for some bizarre reason works really well with my Retina screens. What seemed like suppression happened with -2.5 and -3.

I know in some cases it can be helpful to reduce the strength of one eye to prevent switching back and forth on what eye takes lead. Might be worthwhile for others here to do some actual experimentation with prescription adjustments for a few hours each, instead of blindly assuming that the adviced strength is what works best.