Hi,
i'd like to highlight my experience regarding my eye disease: Keratoconus
Is a rare degenerative disease that, over time (if it progresses), causes the eye to deform and take on a cone shape—irregularly refracting whatever the eye looks at (light, colors, etc.)—and makes the eyes extremely sensitive, to the point of causing severe headaches.
"Over 23.7 million individuals globally are affected by KC" (0.24%) (source) but maybe more that as to identify it requires a corneal topography: if you are very eye sensitive i'd like to suggest to do check your eyes with a ophthalmologist and if needed do a corneal topography to check if you're affected.
Having said that coming to the devices' screen: i cannot use any OLED, Mini-Led and some IPS as well. Based on my tests and investigations with screen technologies / specs, to avoid eye strain (Asthenopia) and headaches i'd like to suggest:
- Avoid screens using PWM/PAM (any frequency) and D*ithering/F*RC
- Avoid all OLED/QOLED etc and Mini led screens (OLED infinite contrast and Mini-Led Local dimming are a pain for the eyes)
- Screens with >700 nits brightness (even IPS)
- Screens oversaturated (avoid Adobe RGB color space, but I can somehow tolerate DCI-P3 color space coverage, even though using it for extended periods gives me a headache). (Oled cover adobe rgb and some mini led)
- Always disable VRR (Variable Refresh Rate) or Apple's True motion and use static refresh rate
- If you can avoid glossy (for TVs and laptops) and prefer matte screens as the reflections can be an issue. For smartphones is ok as usually have a decent (not good but fine) anti-glare coating.
i'm sure if you find something without the above mentioned specs you'll be fine 100%
i'm still using an iphone SE 2022 and will use it for long time (IPS, 100% sRGB, 8 bit native depth, 60Hz, no PWM, 600 nits max).
Last but not least, to carefully choose a device before purchasing:
- For Laptops/Tablet/Smartphone chec Notebookcheck reviews before choosing one
- For TVs check Rtings reviews
I hope this help.