Patient: My friend, female, 28 years old, with high myopia of more than one thousand degrees in her right and left eyes, was examined for congenital cataract in preparation for myopia surgery. The initial examination of the cornea was too thin to qualify for excimer surgery. My local doctor suggested that I should have a crystal filled between my black and white eyes to adjust my vision. Is this procedure mature? Do I need a new lens or is there a better way to solve the problem? I hope an experienced doctor can give me an answer in his busy schedule. Cataract specialist at the Eye Center: There are many ways to treat high myopia through crystal surgery, and the most important thing is to be safe. If there is no cataract, IOL implantation is a good method. Personally, I believe that posterior chamber IOLs are relatively safe and have less impact on the eye tissue. However, if there is a congenital cataract, the surgery will be decided according to the severity of the cataract. If it is more severe, cataract aspiration + IOL implantation will be performed, or if the cataract does not affect vision, it can be treated as if there is no cataract. It is also important to note that congenital cataracts may affect the development of the eye, and if there is amblyopia, the improvement of vision after surgery may not be ideal.