Recently, a patient was admitted to the ward with a diagnosis of “cataract and left lens lysis glaucoma”. After undergoing extracapsular removal of the left lens in our hospital, the pressure in the left eye returned to normal and the vision improved. In fact, this patient had already been indicated for surgery 2 years ago and planned to have surgery for cataract, but due to her busy schedule at that time, she delayed it again and again until this glaucoma attack. So, many people would ask, what is lens dissolving glaucoma? Generally speaking, in mature cataract, because the cataract lasts too long, the water in the lens continues to be lost and the volume shrinks, the capsule membrane wrinkles, the anterior chamber deepens, the cortex mostly liquefies and becomes milky white, and the nucleus of the lens sinks. When the lens capsule membrane is degenerated, thinned or formed a fine fracture due to trauma, the lens protein component may overflow into the anterior chamber, inducing autoimmune reaction and causing allergic endophthalmitis of the lens component; the lens cortex leaks into the anterior chamber causing macrophage reaction, engulfing the lens cortex or Morgangnian fluid leaking into the anterior chamber and making up expansion, these cells plus lens debris blocking the trabecular network, then This causes an increase in intraocular pressure, resulting in secondary open-angle glaucoma, or lens lysis glaucoma.