I'm not talking about neck pain due to posture, but rather neck pain due to eyestrain. Basically, when I game on my TV I get this sort of pain near the base of my neck. I'm unsure if it is exactly related to eyestrain or just due to posture, but I feel that my posture is fine.

    23 days later

    I too feel muscular tension and/or pain in my neck (and other types of reactions too) with some devices (phones/tablets/computers), and I know that it's not related to my posture because it happens only when I use certain devices. I think it's a "stress response" of our nervous systems to something about the screen/image eg pwm, temporal dithering, light spectrum etc.

      Deepdeep glad someone else has the same symptom. I do have a few questions for you:

      1. How severe is your neck pain when you get it? does it start off mild then get worse or is it constant?
      2. Do you also feel upper back tension (either the left or right side, or both)?
      3. What other symptoms do you get apart from neck pain?

      I am enquiring because I want to compare my symptioms to yours so I can pinpoint the issue with my eyes.

          MatchstickMalone444 That's my first symptom in most cases. It lasts forever and it's not due to the posture because it develops or it does not, depending on the settings of the laptop, e.g., 21H2 no neck pain, 22H2 absurd neck pain. In the past with a different laptop I'd have massive neck pain using screen native resolution and no issues at all for lower screen resolution.

          I also get neck pain / tension by just sitting under most LED lights.

            Abeabe I see. My neck pain is mild, and it doesnt seem to be on my neck exactly. It seems to occur exactly at this spot (circled in black). Is it the same area for you or is yours more directly on the neck?

                I do not have this reaction myself, but I believe it is a subconscious reaction of your body to the fact that the picture is not stable (the screen flickers). Your body is trying to kind of "brace for impact" and is contracting certain muscles that make the body posture firm, especially close to the head (head must be primarily protected).

                Hi!

                I had severe neck pain, on left and right side of the neck and in the back part and nausea.

                This happened after 30 minutes of movie on my new Epson projector CO-FH02.

                Unfortunately it has PWM flickering so bad.

                I have to sell it .

                MatchstickMalone444 The severity varies with devices and ranges from mild to strong. In some cases there is a start from mild and then a worsening and in other cases it stays constant. I get upper-back tension/tightness/pain too, and it’s usually on both sides but sometimes it’s only on one side - can’t remember now if it’s left, right or varies. The location “in” the neck and upper-back also varies from superficial to deeper inwards depending on the device.

                Other  reactions I’ve experienced include anxiety, tension, headaches, pressure behind the eyes or in the head, dry/itchy/”sticky”- eyes, a weird inability to focus on text, "spacyness", brain-fog and even the triggering/aggravation of my psoriasis, again varying with devices.

                One thing that might help you is using a pair of dark sunglasses, and if that helps, you could try reducing the darkness of the sunglasses over time while your eyes hopefully adapt to whatever is causing the discomfort - just an idea.

                  5 days later

                  MatchstickMalone444 I do, this all started with macbook air m1. It seamed like severe eye strain kind of causing tension in a neck, but posture is taken cared of. I think it is related to overactive thyroid gland, which then in turn can cause hyperthyroidism type of symptoms. Somehow macbook air m1 have some type of stimulation either from PWM or temporal dithering, or wifi6 that is causing whole chain of symptoms.

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