The fundus itself is a complex area that cannot be seen directly by the naked eye. Therefore, if there is really “fundus congestion”, it must be an ocular manifestation that can only be found after a doctor examines it with special instruments. Moreover, “congestion” itself is not a separate ophthalmic disease, but a manifestation of many ophthalmic diseases and lesions in other parts of the body, so it cannot be seen in isolation. The only way to detect congestion in the eyes is to go to a specialist for an early examination when the symptoms are uncomfortable, so that specific and detailed professional treatment can be given, so that the treatment of the disease can be avoided and the disease can be treated better so that it can be cured as soon as possible. The so-called “fundus congestion”, in fact, in most cases refers to the conjunctival congestion on the surface of the eye visible to the naked eye, that is, the “redness of the eye”. Conjunctival congestion is often a symptom of conjunctivitis, keratitis, iritis, acute glaucoma, and other conditions. In addition, eye fatigue, excessive eye use, poor rest, etc. can also appear “red eyes” performance. To sum up, when you feel eye discomfort, don’t treat it by yourself in pharmacies or with the so-called traditional methods, only professional examination and professional treatment will have better results.