I like this, darlin! I would suggest, instead of using the word "lighter", I would change it to "The world is alight." You could also connect the last two lines so it didn't sound so robotic, if you wanted to. It would read:

My eyes are open.
It's no longer darkness for
the world is alight.

Or with ending the roboticness, you wouldn't need the word "alight" to make up for it, so you could still keep lighter.

My eyes are open.
It's no longer darkness for
the world is lighter.

Either way, I still love it. Great work!

Much love,
5/5
IdTakeABulletForYou

Short yet powerful I like it :)