Fundus angiography does not take long to perform, and can be completed within half an hour from the time the contrast injection is completed to the end of the examination, plus the pupil dilation and contrast injection, which takes a total of about one hour. Before injecting the contrast agent, it is necessary to dilate the pupil with atropine and other drugs, and this step takes about half an hour. After the completion of the pupil dilation, the injection of the contrast agent is faster, and the subsequent fundus angiography can be completed in half an hour, which is presumed on the premise that the patient’s cooperation with the examination is high. In summary, with the addition of pupil dilation, injection of contrast medium, and fundus angiography photography and documentation, the total time required is about one hour. The examination can be successfully completed with the patient’s active cooperation and the doctor’s skillful operation.