The biggest difference between domestic intraocular lens and imported intraocular lens lies in the material. Imported intraocular lenses are superior in material selection and have higher technical content. Imported intraocular lens can achieve 1.8mm (mm) incision minimally invasive surgery. At present, only American philosopher John Allen can do this. Most of the imported IOLs are foldable IOLs, but there are few hard plate IOLs made in China. Foldable lenses need to be implanted. The smaller the incision, the faster the recovery and the lower the possibility of astigmatism.