Idiopathic age-related macular fissures occur mainly in refractively normal elderly people over 60 years of age, and are more common in women. It is believed that during the age-related change of vitreous detachment after liquefaction, the posterior vitreous cortex adheres tightly to the optic disc and macula, and the central concave vitreous produces vertical traction on the retina, resulting in the initial horseshoe hole-like fissure pattern, which continues to expand due to the parallel traction on the hole by the inner retinal membrane around the hole. Stage I is also known as pre-pore stage, where the central concavity disappears and flattens, and a fissure is about to occur, with yellow dots or rings in the central concavity, no posterior vitreous detachment, and a mild decrease in visual acuity. vitreous traction, gradual loss of visual acuity and visual distortion. iii>400um, which may last for months or years. The contraction of the anterior retinal membrane at the edge of the hole causes wrinkling of the inner boundary membrane, and shallow retinal detachment at the edge of the hole can be seen. stage IV: The vitreous is not only separated from the macula, but also from the optic disc, and the Weiss ring can be seen. With the progression of the disease gradually a central dark spot appears, visual distortion is aggravated and visual acuity further decreases. stage II to IV is a total lamellar fissure, visual acuity decreases to 0.1 in most patients after the formation of a total lamellar hole, and continues to decrease to 0.05 in a few cases. laser around the macular hole can lead to continued destruction of visual acuity. The goal of vitreous surgery intervention is to close the fissure and stop the progression of the lesion. The rate of fissure closure after surgery is as high as 90% and the rate of visual acuity improvement is 50-70%. The degree of visual acuity improvement is influenced by the preoperative course of the disease and the level of visual acuity. The indications for surgery are selected from stage II to stage IV macular fissure, and the visual acuity standard is selected from patients with visual acuity below 0.5 if possible. However, it also depends on the experience of the operator and the requirements of the patient.