When talking about ophthalmic emergencies, it is impossible not to talk about retinal detachment, stemming from the fact that this disease is not like other ophthalmic emergencies, such as glaucoma and ocular trauma, which cause patients to pay attention and seek emergency care due to triggers and pain. The painlessness of the disease can easily cause paralysis in patients, delaying the best time for treatment and leading to unrecoverable vision. There are three types of retinal detachment, and today we will talk about the most common and most urgent retinal detachment, foramen ovale. Pore-derived retinal detachment is mostly seen in patients with myopia or family history of heredity, such patients often first appear in the fundus retinal fissure, some patients with simple fissure do not have any symptoms, another part of the patients suddenly appear in front of the black shadow floating or flashing sensation in front of the eyes in a certain direction, at this time, if the patient timely to the hospital ophthalmology to receive dilated triple-lens examination, often can be found in the peripheral retina The ideal treatment is to close the fissure with fundus laser at this time, and most of the patients can avoid retinal detachment. Firstly, not all retinal detachments have black fluttering shadows and flashing sensations; secondly, some patients do not have any preliminary manifestations; thirdly, some patients do not have a history of myopia; fourthly, even if patients have black fluttering shadows in front of their eyes, they may think they are common “flying mosquitoes” and do not pay attention to them. As a result, some patients do not seek medical attention when the retina is fissured, and by the time they realize the problem, the retina is already detached. When a dark black shadow appears in the field of vision, blocking our vision in a certain direction, it indicates that there is a problem in the corresponding retinal area, and the retinal photoreceptor function is missing in that part of the retina. At this time, what needs to be done is to immediately reduce the eye vibration and quickly go to the nearest hospital for ophthalmology consultation. If the diagnosis of retinal detachment is confirmed as foramen ovale, it is recommended to be immediately hospitalized and surgically treated after an emergency detailed investigation. The principle is that it is best to solve the problem externally without entering the vitreous cavity in the eye, and it is suitable for patients with early retinal detachment, small detachment and no obvious vitreous proliferation. If the detached retina is not planted back into the field in time, the seedlings will die due to long-term water and oxygen deprivation, and any salvage will be futile. I have seen many years of retinal detachment patients misunderstandings are: no time to see a doctor, wait for the completion of the work at hand and then consult; mistakenly believe that the glasses have become deeper, wait until the next glasses, only to know that the correction does not go up; think it is cataract aggravation, delayed consultation does not matter; do not know what happened, a short period of frequent eye rubbing in the hope of being able to see; crushed in a number of hospitals, the road bumpy. All of these behaviors invariably aggravate the scope and degree of retinal detachment, and the delayed surgery increases the difficulty of retinal function recovery. For the sake of the recovery of the patient’s visual function, it is recommended that patients undergo emergency surgery for retinal detachment of foramen ovale that occurs within a short period of time.