[A case of treating complicated cataract after ICL implantation with femtosecond laser-assisted phacoemulsification cataract extraction].

A 54-year-old male patient presented with decreased vision in both eyes for 2 years. He had previously undergone retinal photocoagulation, peripheral iridotomy, and phakic implantable Collamer lens (ICL) implantation in Shenzhen Aier Eye Hospital Affiliated to Jinan University 10 years ago. He was diagnosed with complicated cataract. The patient underwent ICL extraction, cataract phacoemulsification, and intraocular lens (IOL) implantation in the right eye. During the procedure, zonular ligament rupture occurred, resulting in the IOL being placed in the ciliary sulcus and subsequent recurrent elevated intraocular pressure. Comparatively, he underwent ICL extraction, femtosecond laser-assisted cataract phacoemulsification, tension ring implantation, and IOL implantation in the left eye without complications. Femtosecond laser-assisted cataract surgery demonstrated advantages in a complicated cataract patient who had previously undergone ICL implantation. However, the precision required for laser positioning may lead to ICL damage, and gas bubble accumulation can hinder complete nuclear fragmentation. Therefore, caution is necessary when focusing the femtosecond laser in eyes with ICL.