This question is based on the damage a solar eclipse can do to your eyes.
In a parallel universe, the only light that reaches the Earth is the dark one — small amount of visible light and substantial amount of ultraviolet, just like the mix that reaches area with solar eclipse on our Earth, but with the same total brightness as our sunlight. People have already adapted to it, being able to see the world through that light.
If such a person came to our Earth (or a similar world) how would he see the world (colors and perception of it)? Would he even be able to see anything at all without years of adaption to our sunlight, assuming he is well adapted to uv-rich light of his world?
And how would we see on his planet? What would we need to do to visit our worlds without ill effects? What these effects would be?
You know that in a solar eclipse you can't stare at the sun, even though you can't see it's brightness. That hidden ultraviolet radiation... Anyways, I meant the dark light, as in that manner. If lets say a person used to that light visits earth, what will happen ? And if a person let's say from earth, gets hit by an attack imitating this 'dark light's but super intense, what would the effects be ?
Sorry I wasn't clear enough. Hope this clarifies the things a bit. Also it is because I couldn't express my self properly... My mother language isn't English, so I improvised on the words ( dark light ), though I did mention I was talking about that kind of light in the beginning, so I'm not quite sure on how you got confused ' This question is based on the damage a solar eclipse can do to your eyes. ' but now that I'm looking at it again, I really messed up on how I conveyed my questions....
Also thanks for the answer, but it's not quite what I wanted... Mistakes happen, we are humans after all ( talking about my self, since this is my fault )
Also if you could reopen the question, I would be forever grateful, and if it is off topic, suggest a place I could migrate this question. If parts of it are off topic, then I will edit this question again, leaving only the on topic stuff.
Edit 2 :
Mistake, the answer was quite what I was looking for. But more is better, and I'm also looking for what would happen if the opposite occured ( a person used to UV rays, coming in contact with sunlight, for prolonged periods of time, something, which the answer didn't include, but I don't think anyone would know anyways. So basically I'm 80% covered :p