Approximately 30 eyes with congenital cataract who underwent primary or secondary intraocular lens implantation surgery at Zhejiang Eye Hospital from March 2018 to December 2020 were enrolled. According to the implantation method of IOL, patients were devided into the optic capture group and the endocapsular group. And through the clinical parameters of postoperative best corrected visual acuity (BCVA), intraocular pressure (IOP), IOL position and whether appear visual axis opacity to compare the outcome of the 2 IOL implantation methods.

Inclusion Criteria:

• Children aged 1 to 10 years diagnosed with congenital cataract
• underwent I / II IOL implantation in our hospital
• corneal diameter more than 9mm
• Good compliance

Exclusion Criteria:

• Patients with other ocular or systemic diseases
• patients whose IOL cannot be implanted in or after the capsule due to ocular conditions
• Children with a history of other ocular surgery
• Low compliance

Children with congenital cataracts who underwent primary or secondary intraocular lens implantation surgery at the Eye Hospital Affiliated to Wenzhou Medical University.