A 65-year-old woman, Chen, was found to be suffering from cataract half a year ago and was advised to undergo surgery, but she was afraid of surgery and did not go to the hospital for a long time. Recently, she came to the ophthalmology department of Yongyi Hospital for a checkup, saying that she suddenly felt a painful swelling in her eyes and a sharp loss of vision, accompanied by a headache and discomfort. After examination, the doctor found that she had typical symptoms of glaucoma and needed to undergo glaucoma cataract surgery after her glaucoma symptoms were stabilized. Chen’s failure to undergo cataract surgery in time unfortunately led to an acute attack of glaucoma. In clinical practice, many elderly patients are reluctant to undergo cataract surgery due to fear. There have been cases of patients who were already lying on the operating table but came off the table again due to excessive nervousness. There are also some elderly people who know they have cataracts but mistakenly believe that they can only have surgery when they are completely blind, unaware that if they delay for a long time, glaucoma may occur and seriously affect their vision. In the process of cataract formation and development, there are two periods when glaucoma can occur. One is during the developmental stage, when the crystal expands and pushes forward the anterior chamber angle structure of the outflow of intraocular atrial fluid, the outflow of intraocular atrial fluid is obstructed, resulting in eye swelling and discomfort, vision loss, and severe ipsilateral headache with nausea and vomiting. Another condition is that the cataract has already reached the mature stage. If the patient does not undergo surgery for various reasons, the cataract will progress to the overripe stage, and the components of the cloudy crystal will leak out in the eye and cause inflammation, which can also block the outflow pathway of atrial fluid and cause glaucoma attacks. Once an acute attack of glaucoma occurs, the cataract patient’s vision will drop drastically, and then surgical treatment will make the surgery difficult, and the patient’s vision will be significantly affected after the surgery, and the patient experiences a lot of pain. More than 20 years ago, cataracts were removed by freezing, which is a big incision and a big damage (about 10mm or more incision), and must wait until the cataract is fully mature, so called “ripe”, and the suspensory ligament that fixes the lens is loose and fragile before it can be removed by freezing. In recent years, with the development of IOLs, especially the development and improvement of the new technology of “micro-minimally invasive surgery”, i.e. cataract ultrasonic emulsion surgery, the general vision is below 0.3~0.4, which obviously affects the life and work of patients, and special occupations or individual patients’ wishes, the vision is below 0.5~0.6 can also be considered for surgery. Ultrasonic cataract surgery is undoubtedly a more advanced cataract surgery procedure in the world, featuring a surgical incision of less than 3mm, preservation of the intact capsular bag, firm suspensory ligament, and implantation of an IOL with higher visual quality, which is why the surgery is safer and has better results. Some elderly patients still follow the traditional concept of waiting until the cataract is “ripe” before surgery, because the cloudy lens nucleus is hard, the capsule is fragile, and the suspensory ligament is loose, it is more difficult to perform ultrasonic emulsification surgery. Therefore, if the cataract is in the immature stage, we can consider to perform ultrasonic emulsion surgery. This period is the best time for cataract ultrasound surgery, which also brings blessings to cataract patients for early recovery of vision and improves the quality of life. Therefore, it is recommended that once elderly cataract patients confirm that cataract needs surgical treatment, they should adjust their psychology as soon as possible, overcome their fears and correct their unscientific understanding, and cooperate with doctors in making various preoperative preparations to prevent other complications.