I know lux is lumens hitting a square metre, so you can't directly convert them.

I'm shopping for light therapy devices, and half the time they are described in lux and half the time in lumens. I don't know why they would use lux as eyeballs aren't square metres in size.

I've read using a 10,000 lux light source for 30 mins is recommended. I have light bulbs that are 700 lumens and 1740 lumens. Can someone please help with converting this?

and I don't understand how they can say 10,000 lux without giving a distance. is that square metre next to the light or a room away? argh

Would it make sense to day that the pupils combine to about a cm squared, so 1/10000th of the # of luxes is how many lumens get in your eyes?