Yes poor lighting is bad for your eyes.
When you work in poor lighting conditions you can get eye strain as well as headaches and that's not good.
This is especially true in office settings when you're looking at a computer screen and are working in the office that has poor lighting.
That poor lighting makes it hard to focus and can strain your eyes and cause headaches and make you lose productivity.
The poor lighting and eye strain can lead to eye problems and may cause you to eventually need eyeglasses.
I used to work in an office with very poor lighting and I got headaches a lot and after quitting that office job and working in a better office with better lighting the headaches and eye strain went away.
It's very important to have poor lighting.