(1) Breathe into the blood from the digestive tract, which acts in the form of inorganic iodine, and then combine into the thyroid gland and play a role in hypothyroidism of goiter patients or children caused by iodine deficiency. ② Promote the respiration of rabbit retina tissue and promote the metabolism of retina. ③ In the experiment of allergic uveitis or fulminant uveitis in rabbits, it has obvious anti-inflammatory effect and can improve ERG.