《晋书·志·第十八章》
凡是视觉有损伤的，是病在火气；因火气伤害，就要水来克。
凡视伤者，病火气；火气伤，则水沴之。
Any one with a visual impairment has an illness relating to fire energy; because of the harm caused by fire energy, it is necessary to offset it with water.