Highly myopic patients with black dots floating in front of their eyes are usually caused by vitreous clouding, which can be alleviated by oral lecithin complex iodine tablets or laser treatment. Vitreous clouding is a common ophthalmologic disease that occurs in middle-aged and elderly people as well as patients with high myopia. It is caused by the degeneration of vitreous tissue and the accumulation of cloudy metabolites, which affects the refraction of light through the vitreous body and makes the patient’s field of vision have black shadows fluttering. The diagnosis can be confirmed by detailed funduscopic examination and ophthalmologic ultrasound, etc. In terms of treatment, drugs such as oral lecithin complex iodine tablets can be taken to promote the absorption of the clouding material, and if the absorption of the drug is not absorbed with conservative treatment, laser treatment can also be considered to break the clouding material into fragments to facilitate its absorption. The medication should be used in accordance with the doctor’s prescription. Highly myopic eyes with black spots, the patient should promptly go to the hospital ophthalmology consultation, by the doctor to identify the cause of the disease to take targeted treatment.