Abstract: It is a common clinical scientific problem that myopic shift after congenital cataract surgery in children. The influencing factors are being explored. Among which, the younger the patient when cataract extraction with intraocular lens (IOL) implantation is performed, the greater the myopic shift. Moreover, patients can be treated with IOL implantation or optical correction after cataract extraction, achieving similar axial growth in a long-term follow-up period.The visual axis opacity and glaucoma after surgery can both increase the myopic shift. Clarify the best time point for IOL implantation, accurately calculate the IOL power, reasonable planning of follow-up time, has important clinical significance to improve the long-term visual quality of patients and reduce excessive myopic shift.

Key words: congenital cataract, myopic shift, axial length, intraocular lens