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  • Are there any Brazilians here?

Existe alguém que seja brasileiro neste fórum para um ajudar ao outro? Estou perdido aqui, todo brasileiro que converso não tem ledstrain. Será só eu nesse imenso país com esse problema?

(Is there anyone Brazilian on this forum to help each other? I'm lost here, every Brazilian I talk to doesn't have ledstrain. Is it just me in this huge country with this problem?)

    My God, I watched a report on television talking about dry eye, many people in a hospital with eye pain. I believe that people did not associate the situation of dry and painful eyes with ledstrain

    • JTL replied to this.

      JTL Hello, yes yes, this is brazilian portuguese. Do you speak portuguese?

      • JTL replied to this.

        JOSEUISLEY That being said. I'd still be interested if you had a link anyway.

        This is the link. Maybe you can found it on Facebook, but I have not Facebook social network, then I can't search it.

        Hey José,

        I’m a Brazilian living in São Paulo, and I first noticed I had issues with LED screens around 2019 when Apple released the 16" MacBook Pro. It was the first Apple device that gave me trouble—migraines, brain fog, you name it.

        For my own devices, I’m using an iPhone 12 Pro with iOS 17.7. I updated to iOS 18 a few weeks ago, but I’m pretty sure they added temporal dithering in the new version because I started feeling off just a few minutes after the update. I had to roll back to iOS 17.7, and things went back to normal.

        I’m also using a MacBook Pro 15" (2019), which is one of the last models with Intel CPUs. I can’t handle any MBP released after that (including the 16" Intel model and anything with Apple Silicon). I’m running macOS Sonoma 14.7 because they enabled temporal dithering on macOS 15 too, so I had to downgrade, just like with iOS.

        I’m pretty sure it’s a mix of both hardware and software causing the issues. PWM doesn’t seem to be the main problem since my iPhone 12 Pro uses it at around 250 Hz and I don’t feel anything. Temporal dithering seems to be the main culprit, as I mentioned with the latest macOS and iOS updates. I’ve also tried several Android phones, but all the newer models with AMOLED or IPS screens give me trouble.

        It’s really hard to troubleshoot since, like I said, it’s a mix of PWM, temporal dithering, and the screen panel itself (probably the backlight). So, you never know which one is actually causing the problem.

          illusi0n Ufa! Até que enfim um brasileiro! Ilusão, meus problemas são parecidos, em 2015 eu senti muita fadiga ocular com vários dispositivos, de LG a Samsung. O meu alívio foi um iPhone 5s que usei até este ano, mas por ser iOS 12 não roda mais nada. Testei iPhones do se 2016 ao 14 pro, todos me deram muita dor e fadiga ocular. Neste momento estou com um se 2016, mas tenho que tapar o olho mais sensível com uma mão e digitar com outra, posso fazer isso por uns cinco ou sete minutos antes de se tornar insuportável.

          Fico feliz por você ter encontrado um dispositivo moderno que não te faça tão mal, eu continuo na busca.

          Ah! Moro no Mato Grosso, quando eu falo em Ledstrain aqui todos riem de mim, mas estamos na luta.

          dev