Electronic sheet music such as on tablets absolutely doesn't work for me as the harsh glare of the backlit screen is extremely tiring on my eyes (even typing this on my laptop I'm doing most of the typing with my eyes dimmed so the backlight of the laptop screen doesn't tire my eyes out).
How do blind or low-vision people learn piano?
The optic neuritis, caused by pressure on my optic nerves, also causes non linearity in my eye’s response to light so even moderate glare becomes extremely severe.