Congenital cataract is an important blinding eye disease and is the second leading cause of childhood blindness. Congenital cataracts are responsible for 22-30% of blind children. Most of them are present before and after birth or develop during childhood, so they seriously affect the vision development of children. How to treat congenital cataract 1. Early surgery to remove the severely clouded lens, especially for monocular cataracts that block the pupil area. Usually the timing of surgery is 6-8 weeks after birth for monocular cataracts and 10 weeks after birth for bilateral congenital cataracts. 2. Stage 1 surgery: cataract aspiration + posterior lens capsulectomy + anterior vitrectomy. 3. Since the refractive state of the eye after removal of the lens shows high hyperopia, it is important to wear glasses and conduct effective amblyopia training in time after surgery. For children with monocular congenital cataract, the amblyopic training process should also cover the good eye, so that the original cataract eye has more opportunities to develop. 4. Families who have the conditions can also give their children corneal contact lenses (RGP) after surgery, so that there is no excessive gap between the object images seen by both eyes, which is conducive to amblyopia training and the development of binocular vision. 5, every six months to a year for medical optometry, timely adjustment of glasses to adapt to the refractive changes brought about by the development of the eye. For school-age children, they should wear another pair of glasses or bifocals when reading near. 6. Stage II surgery for IOL implantation should be performed at around 2 years of age. 7.After surgery, amblyopia training and binocular coordination training should be maintained. (1) Red light scintillation therapy, using red light with a wavelength of 630 nm to stimulate the visual cone cells in the central macular recess of the fundus. This area is the most sensitive area in the fundus, and the stimulation can improve the excitability of the cells, thus improving the child’s vision; (2) posterior image enhancement therapy, converting abnormal paracentral gaze to normal macular central recess gaze. (3) Amblyopia training software, which is a new amblyopia treatment method based on perceptual learning theory and the application of multimedia technology. It is based on the plasticity of the brain nervous system, according to the mathematical model of visual neuron perceptual field, through specially designed multimedia biological information stimulation, so that the visual cortex cells can reach the best visual filter, open the visual channel, correct and improve the information processing and processing ability of the brain neuro-visual system, so as to improve visual acuity, restore, rebuild and improve binocular vision function, and achieve the purpose of treating amblyopia and improving binocular vision function. The purpose of the treatment is to improve the visual function of both eyes. (4) Fine vision training methods, enhance the child’s near vision, let the amblyopic eye use in the process of doing fine movements, eliminate the brain’s inhibition of the amblyopic eye, promote the full development of the amblyopic eye’s visual function, thereby improving visual acuity. In addition, during the training process the child makes full use of the combination of hand, eye and brain, and while training vision it also promotes the development of the brain, which is also quite beneficial to the development of the child’s intelligence. In general, the treatment of congenital cataract must be early and timely. Otherwise, irreversible form deprivation amblyopia occurs, leading to lifelong visual impairment. Even if surgery remedies the problem, the postoperative vision is poor. Cataract surgery is only the first step of a long journey, and there is still a long way to go. After surgery, it is important to insist on systematic treatment and persistent amblyopia training is very crucial.