Pore-derived retinal detachment occurs on the basis of retinal fissure formation, where the liquefied vitreous enters between the retinal sensory layer and the pigment epithelium through the fissure, forming a retinal detachment. It is mostly seen in the elderly, highly myopic and after ocular trauma. Aphakic eyes, IOL eyes, one eye with retinal detachment or a family history of retinal detachment are also high risk factors. Aperture-derived retinal detachment starts with flying mosquitoes or floating objects in front of the eyes and a flashing sensation in a certain direction. If the hole is located in the macula, vision will be significantly reduced. When retinal detachment occurs, there will be black shadows obscured in front of the eyes and gradually increase. If the retina is not reset in time, the retina will be atrophied and degenerated. For patients with long retinal detachment, even if the retina is successfully reset after surgery, the function will still be difficult to improve, resulting in permanent blindness. Retinal detachment that is not reset for a long time can be complicated by iridocyclitis, pupillary atresia, concurrent cataract, secondary glaucoma, and even ocular atrophy. When pore-derived retinal detachment occurs, it should be promptly treated surgically, and the principle is to surgically close the fissure. Preoperatively, according to the condition of retinal detachment, extra-scleral pad compression, extra-scleral ring ligation, and vitreous surgery, gas or silicone oil intravitreal cavity filling are chosen for complicated cases to reset the retina. About 90% or more of simple foraminogenic retinal detachment can be operated successfully, while the success rate of complex retinal detachment and traumatic retinal detachment etc. is lower. The recovery of vision depends on whether the macula is detached or not and the duration of detachment. If the macula is not detached or detached for a short time, the visual prognosis is good, otherwise, even if the retina is completely reset, the macular function cannot be restored, therefore, early surgery should be performed. For retinal detachment in one eye, the opposite eye should be routinely examined with dilated pupil for prevention and control, and preventive photocoagulation can be done if there is lattice-like degeneration or fissure. We especially remind that when mosquito flying, floating objects in front of the eyes or flashing sensation appear, you should immediately go to the hospital for examination to detect the fissure in time and perform fundus laser to prevent retinal detachment.