How to judge human health by visual color?

Except congenital color blindness, the color of objects seen by people with normal vision is determined by their true colors. When you find that your vision is suddenly covered by an inherent color, this is abnormal color discrimination. This is not only an eye disease, but also a sign that some disease will happen.

Green vision: more common in early epilepsy. Some patients who take amiodarone to treat arrhythmia may also have green vision.

Purple vision: more common in the early stage of retinal choroiditis. In addition, purple vision will also appear in the early stage of cannabis poisoning.

Yellow vision: more common in carbon monoxide poisoning and digitalis poisoning. Yellow vision can also occur when drugs such as hawthorn, hydrochlorothiazide and ethambutol are overdosed.

Iridescent: Glaucoma patients may have iridescence when their blood pressure rises, and patients with early cataract and acute conjunctivitis often have iridescence around the light source.