At the age of 30 with 1000 diopters of myopia, there is a risk of blindness if problems such as fundus lesions are not taken seriously. In general, myopia of 1000 degrees at the age of 30 will cause a significant loss of vision, and the patient will see things blurrily, even at close range. If there is a combination of other fundus diseases, such as fundus leopard-like changes, peripheral retinal degeneration and macular tear, etc., once failed to timely treatment or treatment is not standardized, the patient is likely to face the risk of blindness. Of course, being 1,000 diopters myopic at age 30 does not necessarily mean that you will go blind. The risk of blindness can be reduced by correcting vision, practicing proper eye habits, and undergoing regular fundus exams at the ophthalmology department to intervene promptly for problems such as retinal degeneration.