辣眼睛 original means something irritates your eyes and thus you could not bear seeing it. It is a metaphor. It means some internet pictures or scenes in life that is so disgusting you can’t even look at it directly.
辣là: spicy. 眼睛 yǎnjīng: eyes.
Pinyin: Qiè yángcōng là yǎnjīng
English: Slicing an onion makes the eyes sting.
Pinyin: Zhè biǎoqíng bāo kě zhēn là yǎnjīng.
English: This emoji icon pack is really disgusting.