The brown light reflection in the anterior chamber of the ocular lens is thought to be a “mercury lensitis” caused by mercury deposition, which can persist after symptoms of poisoning have disappeared or after exposure to mercury has been removed, and is another marker of mercury absorption. Chronic mercury poisoning is often caused by occupational inhalation of mercury vapor, and in a few patients it can also be caused by the application of mercury preparations. Psycho-neurological symptoms may begin with dizziness, headache, insomnia, and dreaminess, followed by agitation or depression, anxiety and trepidation, and manifestations of phytodysfunction such as flushing, excessive sweating, and skin scratching signs. Muscle tremors are first seen in the fingers, eyelids and tongue, and later in the arms, lower limbs and head, or even the whole body; they are more pronounced when being noticed and excited. Oral symptoms mainly include mucosal congestion, ulcers, swollen and bleeding gums, and loose and lost teeth. In cases of poor oral hygiene, blue-black lines of mercury sulfide particles arranged in rows can be seen in the gums, which is a marker of mercury absorption. In the kidneys, there is initially subclinical renal tubular impairment with low-molecular proteinuria, but also nephritis and nephrotic syndrome. Renal damage can be expected to recover after removal from mercury exposure. Patients with chronic toxicity may also have weight loss, hypogonadism, menstrual disorders or miscarriage in women, as well as hyperthyroidism and peripheral neuropathy. The brown light reflection in the anterior chamber of the ocular lens is thought to be caused by mercury deposition “mercury lensitis” and this brown light reflection can persist even after the symptoms of poisoning disappear or after the exposure to mercury is removed, which is another marker of a kind of mercury absorption. Such patients are advised to eat foods that stop bleeding; foods with high quality protein; antibacterial and anti-inflammatory foods; substances that are harmful to the body; spicy and stimulating foods; and oily foods. The following are the dietary treatment methods for you. 1, increase the intake of dietary fiber, dietary fiber can slow down the rate of heavy metal absorption. 2, increase the supply of dietary high-quality protein such as milk, eggs, soybean products, and increase fresh vegetables and fruits rich in vitamin C, which have an important role in preventing harmful metal poisoning, or alleviating the toxic effects of harmful metals. 3.Increase the supply of inorganic elements such as calcium, iron, zinc and selenium in the diet, which can inhibit the absorption of harmful metals 4.Control the intake of fat, too much fat can promote the toxic effects of heavy metals.