Patients with macular tear usually need to have gas injected into the vitreous cavity during surgery, and patients need to be aware that before the gas is absorbed, it is important to remain in the prone position so that the gas can press against the macular tear and promote repair of the macular tear, which can cause significant discomfort to the patient. Macular tear is a common fundus disease, because the macular area of the retina is torn to form a tear patients will suffer from vision loss, visual field defects and other discomfort symptoms. For treatment, the patient may undergo vitrectomy and gas is injected into the vitreous cavity to pressurize the retina in the macula to facilitate its repair. Before the gas is absorbed, patients may feel unable to see clearly and experience discomfort due to lying down, and their vision can be gradually restored after the gas is gradually absorbed. When the gas is not absorbed, the patient must pay attention to strictly maintain the prone position, in order to let the gas better top pressure on the macular tear to make it reset, and avoid secondary glaucoma and other complications. It is recommended that patients with macular lentigines seek prompt medical attention to evaluate their condition and follow the doctor’s instructions for treatment.