There are many people with glaucoma who were engaged in driving before they were diagnosed with glaucoma; at the same time, as the standard of living continues to improve, more and more families and individuals have small cars, and this includes some people with glaucoma. So, as a glaucoma patient, can he or she drive as normal? To answer this question, we must understand a few professional concepts. What is the staging of glaucoma? We know that there is a stage for any disease, and glaucoma is no exception. The staging of glaucoma disease is based on its visual field, and to summarize, if a patient has less visual field loss, his/her glaucoma is early; the more visual field loss, the more advanced the course of his/her glaucoma. What is visual field? Visual field is the area that our eyes can see when they are looking straight ahead and not moving. The wider the field of vision, the better the visual field is, and the darkness and lightness of objects are the same in all the fields of vision; conversely, the narrower the field of vision, and the darkness and lightness of objects are significantly different in all the fields of vision, the worse the visual field is. What is contrast sensitivity? What is contrast sensitivity? A very simple analogy is that two people with equal visual acuity when examined with a white and black vision chart may not have equal visual acuity when examined with a gray and black vision chart. This indicates that the contrast sensitivity of the two people is different, and the person who has good vision with the gray and black vision chart will have better contrast sensitivity. There have been many studies that have confirmed that patients with early glaucoma or patients with high intraocular pressure disorder have a decrease in contrast sensitivity when their visual field is completely normal, and the decrease in contrast sensitivity directly affects our night vision and our ability to judge. Why should a person with glaucoma not drive? For a driver (whether professional or non-professional), judgment is crucial, as proper judgment can prevent traffic accidents. Visual field and contrast sensitivity can directly affect a driver’s ability to make judgments. Imagine a patient with advanced glaucoma, whose field of vision is very narrow, such a person to drive, he can only see the object in front of him, simply can not see the surrounding people or objects, and will not be able to make a correct judgment of the location of the car, therefore, prone to traffic accidents; In addition, for a patient with early glaucoma who has reduced contrast sensitivity, in the night driving, due to its reduced night vision, resulting in its inability to In addition, for a patient with early glaucoma who already has reduced contrast sensitivity, when driving at night, due to his reduced night vision, he cannot make timely and correct judgment of people or objects in the distance, thus causing traffic accidents. Therefore, for a glaucoma patient, if he or she is a professional driver, it is better to change his or her occupation regardless of whether his or her disease is in the early stage, or in the middle or late stage; if he or she is a non-professional driver and his or her glaucoma is in the early stage, then the patient can choose his or her driving time and place after listening to the specialist’s advice, such as during the daytime on wide, less pedestrianized roads; if his or her disease is in the middle or late stage, for the sake of his or her family If the disease is intermediate or advanced, it is better to choose not to drive for the safety of family members and oneself.