Children with astigmatism of 300 degrees usually cannot be cured by themselves, and need to take treatment measures such as wearing glasses and general measures of conditioning. Astigmatism may be caused by congenital factors or acquired factors such as corneal diseases and trauma. Children with astigmatism may experience symptoms such as blurred vision, decreased visual acuity, and visual fatigue. When a child develops astigmatism of 300 degrees, it is usually irreversible, so it cannot be cured by itself, and parents should bring their children to the doctor in time. Parents are advised to take their children to regular hospitals for checkups, and after the checkups, the children can be helped to improve their visual quality by wearing frames. If the child’s astigmatism is irregular, corneal contact lenses can be used. In addition, if the child has 300 degrees of astigmatism, parents should supervise the child to develop healthy habits and should not use the eyes excessively. Children should also pay attention to eye hygiene and do outdoor activities appropriately. Children with astigmatism of 300 degrees can not be cured by themselves, parents should take their children to regular hospitals to receive treatment in time.