Because cataract surgery is an internal eye surgery, the requirements for the operating room are very high. The cataract operating room is a class 100 operating room with the highest degree of cleanliness, where only 100 various types of suspended matter are allowed in each cubic meter of space; it is usually a laminar flow operating room, where the indoor air can go out and the outside polluted air cannot go in, and there is specially filtered air fresh air injected into the operating room to guarantee the cleanliness of the operating room and avoid the infection of the operated patients. Therefore, cataract patients have to shower and wash their hair before surgery, change their surgical gowns, and family members cannot enter the operating room to visit. It is the surgeons and assistants who must also change into special surgical gowns before entering. In the waiting area, a nurse will prepare each patient for surgery: rinse the eye, order pupil dilating eye drops, order anesthetic, disinfect the conjunctival sac of the operated eye, etc., and change the patient into a surgical gown and put on a surgical cap. The patient will then be led to lie down on the surgical bed. The surgical bed is narrow, and the patient’s arm is often wrapped in a sheet to prevent it from moving around or falling under the surgical bed during surgery. There is usually no pillow, only a small head ring to rest on to hold the head in place. A surgical assistant will then disinfect and sheet the patient’s eyes for surgery. The head and face will be covered by the surgical towel, with only the operative eye showing. This is all for the sake of surgical sterility and to avoid eye infections. Some patients may say, “Will it be stuffy if the surgical towel covers your head? We have taken this into consideration and have specially introduced oxygen under the surgical towel so that patients will not hold their breath during surgery. For patients who need post-bulbar or peribulbar anesthesia, the surgeon will give a shot to the eye at this time. This shot is somewhat painful and sore. With this injection, there will be no pain during surgery and the eye will not move involuntarily. Some patients can cooperate, so they do not need the injection, but just need some eye drops for surface anesthesia; these patients can turn their eyeballs during surgery, but they must listen to the surgeon’s instructions and not move around. Next, the eyelid opener is used to open the eyelid of the operated eye. You should not close your eyes too hard at this point; if you close your eyes too hard, the lid opener may pop out. It is okay to close your eyes gently. The surgery is then performed and will take about 30 minutes to complete. A light will be shone into the eyes during the surgery and the patient will see the surgical instruments moving in front of their eyes. There is no need to be nervous or worried, it is not painful and there is usually no discomfort. Patients relax their nerves and slow down their breathing so that the surgeon can perform the surgery more smoothly. Some patients are so nervous that they hold their breath and are afraid to breathe, which leads to high intraocular pressure and uneventful surgery. At the end of the surgery, the lights are turned off, the lid opener is removed, eye ointment is applied, and the dressing is applied. Our nurses will help the patient get up and go to the waiting area to rest. That’s it.