An ocular infarction is usually a blockage of an artery in the retina and is usually categorized as either a central retinal artery or a branching retinal artery blockage. Regardless of the type of arterial blockage, it is a very dangerous condition that requires prompt, symptomatic management. However, in the case of more severe blockages, the prognosis after treatment is not very favorable. This artery blockage is similar to a cerebral embolism, a hemiplegia caused by an embolism of a blood vessel in the brain, and an ophthalmic artery blockage is similar to an embolism, which can lead to loss of retinal function at the bottom of the eye. Blockage of the arteries causes loss of blood supply to the retina, which leads to loss of function, which leads to loss of vision and visual field defects. If this loss of oxygen supply lasts more than 3-4 hours, it may cause irreversible functional damage. Generally speaking, when arterial blockage occurs, the first thing to do is to inhale oxygen to supplement enough oxygen; the second thing is to use medicines to improve circulation to strengthen blood circulation; if the conditions allow, and the physical state is relatively good, you can take thrombolytic therapy in time to promote the dissolution of embolus or dislodgement, to open up blood vessels in order to restore the blood supply, to ensure that the function of the retina is restored. However, if the period of time is longer, usually more than two weeks, there is usually little hope for functional recovery, and often there are not many treatments that can improve the visual acuity and visual field defects.