"Put the light on, you'll damage your eyes!" We all must have heard it from our moms. But there's no need to worry – reading in the dark doesn't damage your eyes at all. However, if you need reading glasses, you should wear them.
Scientists still argue about this issue today: reading in poor light damages your eyes. But currently there is no evidence at all to suggest that reading in poor light damages your eyes.
I suppose the answer is yes cause my eyes will become very uncomfortable if I read in poor light. They will do the same if the light is too bright. Thus I think soft light should be the best.