During the summer vacation, many parents want to take advantage of their children’s vacation to give their children a good eye examination to see the changes in vision, we can understand the parents’ concern for the development of their children’s vision, but sometimes in the clinic will encounter some “confused” parents, spending a lot of money, taking their children to many places, but did not check the child’s vision However, sometimes we encounter parents who are “confused” and have spent a lot of money and taken their children to many places, but have not checked the cause of their children’s poor vision and even missed the best time to treat their children. The first thing I would like to talk about is what types of diseases are associated with poor vision in children: 1, refractive error: including myopia, hyperopia, astigmatism, poor vision in children may be simple myopia, hyperopia, or a combination of astigmatism, if you bring your child for the first time, it is best to see an ophthalmologist first, the doctor ruled out other eye diseases, the eye structure is normal in the case of dilated pupil examination, according to the child’s specific age and eye condition After determining the exact prescription, we will check the child’s eye position and determine the final prescription based on the child’s overall eye condition. If your child’s vision is normal after wearing the glasses, the doctor will tell you the specific time to wear the glasses and the precautions you need to take in your life and study. If your child’s vision does not return to normal after wearing glasses, he or she may also have amblyopia or strabismus, the doctor will tell you when to get glasses and what kind of visual training to combine with the glasses. Therefore, the prescription for children is not as simple as determining the prescription and putting on glasses, but must be examined by an ophthalmologist before prescription. 2, congenital cataract, fundus disease, intraocular tumor, etc.: Some children are born with normal vision or can learn and live normally, but as time grows the disease gradually worsens and vision gradually decreases; some children are born with congenital or hereditary diseases, such as congenital cataract, fundus optic cell dysplasia, retinoblastoma, etc. If parents find that their child’s vision is declining rapidly, they must take the child to the hospital for a regular eye examination first, not to think that the child may be myopic with glasses on it. Some eye diseases can be treated very well if they are detected early. I once saw a mother who brought her child to the clinic and said she saw that the pupil of her child’s eye had turned white, and after examination, we found that the child had “retinoblastoma” and the tumor had grown to the back of the crystal, filling the entire eye with almost everything. We were heartbroken to see the sad parents and the crying child. No treatment could save the child’s eyes, but if the parents had taken the child to the hospital for regular eye examination when the child’s vision was slightly poor and started treatment at the budding stage of the tumor, the prognosis would have been completely different. Glaucoma: There is a kind of glaucoma called open-angle glaucoma, which mostly occurs in myopic patients, and there is no discomfort in the eyes when the disease occurs. I once saw a 17-year-old boy who came to the clinic and said that he was told by the examiner at an outside optician that his prescription was growing too fast and that his glasses were not good enough for him to go to the hospital for an examination. We found that the optic nerve in both eyes had atrophied, the intraocular pressure had increased significantly, and only a tubular visual field remained in both eyes. I asked the child’s parents if they had noticed that he had been riding his bicycle with others recently, and the parents then remembered that the child had been reluctant to ride his bicycle recently, and that he could not see anything that was placed in his hands. The child could only see a small piece of light directly in front of him, and the surrounding area was completely dark. The best treatment for glaucoma is to maintain the existing vision, and the damage to the optic nerve caused by high eye pressure cannot be reversed. This child’s diagnosis of glaucoma almost sealed his fate for the rest of his life. Looking at the desperate eyes of the parents and the child, we would like to say that if the child had chosen a regular hospital for glasses, perhaps his fate might have been completely different, but there is no more meaning if for him. 4, cone cornea: is the cornea pathological forward protrusion, causing the gradual increase of the eye astigmatism, corneal thinning, etc., some eventually need to perform corneal transplantation surgery. Cone cornea mostly occurs in adolescents, the early manifestation of the main myopia fast growth, more difficult to fit glasses, and finally can not be corrected with frame glasses. Early diagnosis of this disease requires an eye examination such as corneal topography. If the disease is detected at an early stage, corneal cross-linking and rigid corneal contact lenses can be used to control the progression of the disease and restore better vision. If the disease is detected at a later stage, corneal transplantation may be required, and in some cases, corneal perforation, endophthalmitis, or even removal of the eye may be required. There are many other diseases that cause vision loss that we can’t list, but after all this we are still emphasizing the importance of regular eye exams for adolescents and the importance of regular, scientific prescriptions for early detection and early treatment of some eye diseases. Sometimes a decision can change the fate of a child’s life.