High myopia has been highly prevalent in the past two years and can be complicated by other eye diseases, seriously endangering the physical and mental health of patients. As a result, experts at Aier Eye Hospital suggest that patients should be alert to early detection and early examination and treatment. So, what are the dangers of high myopia? The symptoms of high myopia, such as loss of vision, dark shadows in front of the eyes and protruding eyes, can have a serious impact on patients’ lives. In addition, high myopia, if not treated early, will lead to fundus pathology, resulting in the following diseases: 1, retinal detachment: mainly manifested as sudden blurring of vision, deformation, black shadow obscuring, serious cases can lead to blindness; 2, cataract: high myopia is easy to complicate cataract; 3, glaucoma: high myopia will occur in many people glaucoma, and glaucoma is currently ranked second in the blindness-causing eye disease; 4. Flying mosquitoes: medically known as vitreous turbidity, manifested as a person looking at things when there are black shadows floating in front of the eyes, like mosquitoes flying, mainly caused by vitreous liquefaction. Myopic patients with flying mosquitoes are recommended to have regular eye examinations and pay attention to the health of the retina. High myopia is very dangerous, it is recommended that we should be vigilant and do a good job in the prevention of the disease. If you are unfortunate enough to suffer from this disease, please also go to a regular professional eye hospital for examination and treatment as soon as possible.