There was a popular belief that cataracts should be operated only when they are fully mature and invisible, which is a wrong view. With the popularity of microsurgery and the improvement of surgical techniques, vision loss is no longer the only indication for cataract surgery.
Generally speaking, as long as cataract affects daily life and work, surgery can be considered. In some patients, although their visual acuity is good, they are accompanied by obvious discomfort such as photophobia or glare, or their contrast sensitivity is significantly reduced, so they should be operated as early as possible so as to improve their quality of life. If you wait until the mature or overripe stage to operate, not only will secondary glaucoma or uveitis be caused by the overripe crystal, but also the surgery will be more difficult and there will be relatively more complications.