With the continuous development of glaucoma treatment equipment, new diagnostic instruments have gained popularity in China. Fast high-resolution coherent optical tomography (OCT) scanners, various models of visual field meters, upgraded computer-assisted optic nerve papillary image analyzers (HRT), retinal nerve fiber analyzers (GDx), visual electrophysiological detectors (mERG), etc. have become auxiliary equipment for glaucoma diagnosis in major hospitals. It can be said that in terms of hardware, China has surpassed the resource allocation of developing countries. In outpatient clinics, patients with glaucoma also present a large number of test results based on various devices, and many patients even undergo all possible tests. So, which of the many testing devices is the most valuable? This is a question that has been generally agreed upon internationally, but is “ignored” by many doctors and patients in China. So far, stereo optic neurography for glaucoma is still the most valuable method to diagnose and follow up glaucoma. All other testing devices have systemic deficiencies that are difficult to overcome. Therefore, bias may occur in the interpretation of the results. In the case of the more popular OCT test, for example, the lack of a complete database of normal values for the Chinese population means that the retinal nerve fiber thickness obtained in the OCT test may be mistakenly considered normal or abnormal. In addition, the OCT procedure does not take into account the high myopic optic nerve papillary variation, so the value of the test becomes even lower in highly myopic people. Stereotactic optic neurography is not a new technology, and its diagnostic value has been internationally recognized for a long time. It is only in the last decade that various hardware technologies have made leaps and bounds, igniting a strong interest in the use of various devices by glaucoma doctors to diagnose glaucoma. When the hullabaloo has passed, and we look again at the diagnostic methods of glaucoma, we find that stereoscopic optic neurography is still the most central diagnostic and follow-up tool for glaucoma patients. Optic neurographic examinations have been performed in many hospitals in China, and are simple and intuitive, and have good diagnostic value for patients. However, general optic neurography can only record the planar features of the optic nerve papilla and does not reflect the spatial morphological changes of the optic nerve. In addition, the inconsistency of exposure in each examination has a great impact on the interpretation of details, and it is difficult to capture the early manifestations of glaucomatous optic nerve deterioration in a sensitive manner. Therefore, this method has some limitations. Stereoscopic optic neurography has more information and the results of the test are more realistic, while less likely to be affected by the exposure conditions at the time of photography, making it the most objective test method available and known as the gold standard for glaucoma diagnosis. The image above shows the results of a stereoscopic photograph of the optic nerve of a glaucoma patient. If observed from a single flat photograph, only the upper disc rim is felt to be slightly narrower. If combined with the stereoscopic observation, it clearly shows that the upper disc rim has been lost, indicating that the disease has entered the middle stage. Therefore, the treatment should be intensified to bring down the IOP to a lower level in order to stop the further deterioration of the lesion. Stereopsis results can better help the doctor to determine the condition and guide the treatment. Stereoscopic optic neurography is also of particular value during the follow-up phase to evaluate more accurately whether the lesion has progressed and to avoid misjudgments caused by light or angle effects. Compared to traditional case descriptions, stereoscopic follow-up avoids the bias of subjective descriptions by different physicians and provides a more specific and objective picture of the morphology and changes of the optic nerve papilla. Of course, we are not opposed to the use of other testing devices, which provide useful additions to the diagnosis of glaucoma patients. However, they cannot replace the diagnostic value of stereoscopic optic neurography. journal of Glaucoma recently published a study showing that for glaucoma specialists, the results of stereoscopic optic neurography should be relied upon, while for non-glaucoma specialists, complementary instrumentation can improve the diagnostic ability of the physician to some extent. Therefore, it is recommended that all patients with glaucoma or suspected glaucoma undergo stereotactic neurographic examination.