Laser after cataract surgery is commonly used for the following types of cataracts: 1. Posterior cataract is the gradual clouding of the posterior capsule after cataract surgery, which will affect vision again. The blurring is caused by macular oedema. For this kind of macular oedema, we can consider undergoing fundus laser to make the macular area photocoagulated to make the oedema subside so that vision can be restored. The common lasers used after cataract surgery are posterior capsule laser and macular laser.