There is a mother named Li, because she is highly myopic, she is worried that her son will inherit myopia and is curious to know if her child’s vision is normal. Her child was only 7 months old, and when she went to a certain hospital for examination, the doctor said that the child was too young and uncooperative to be examined, and that she would have to wait until she was older. With the idea of giving it a try, Li’s mother brought her son to the ophthalmology department of Xiamen First Hospital. After hearing Li’s mother’s complaint, I told her not to worry, our hospital has a complete set of vision testing tools for children, which can completely solve her problem. After a patient and careful examination, Li’s child’s visual acuity was 0.25 in both eyes, with normal visual development and no inheritance of her myopia. Li’s mother’s heart was finally relieved. As we know, after birth, the visual system develops rapidly under the conditions of normal external visual stimulation. Active growth and development continues until the age of 2 to 3 years; around 8 years old, the visual system and visual function develop to maturity. Normal children’s vision gradually improves with age, for example: newborns have only light perception; 6 months have a more perfect central concave gaze, vision up to about 0.2; 2 years old vision about 0.5; 3 years old vision mostly 0.6 to 0.7, half up to 1.0; 4 years old about 80% vision up to 1.0; 5 years old about 90% vision up to 1.0; 6 years old healthy children’s vision basically reached adult level. Since the degree of cooperation varies from age to age, different testing tools need to be selected. The characteristics of children’s visual acuity examination are that infants and children’s visual acuity examination is based on objective qualitative methods, and after 2 to 3 years of age, subjective examination methods can be used as appropriate. We use behavioral observation, optokinetic nystagmus, selective viewing, and visual evoked potential methods to test the visual acuity of children before the age of 1 year for the characteristics of children of different ages and their degree of cooperation. Dot visual acuity chart, bar-grid visual acuity card, and pictorial visual acuity chart were selected to examine the visual acuity of children aged 1 to 3 years. The E/C visual acuity chart was selected to examine the visual acuity of children and adolescents aged 3 to 4 years or older. In addition, we also check the binocular monocular function of children with the use of tools such as wire lenses, Titmus stereo test cards, and simultaneous vision machines. With these visual function testing tools for children of different ages from newborns to 16 years old, our hospital is able to help parents detect vision problems in children at an early stage so that they can be treated early and restore binocular vision function as soon as possible, giving back bright eyes to their children.