Clinical Research on the Effect of Different Extents of Internal Limiting Membrane Peeling on Macular Hole Closure and Visual Acuity

Inclusion Criteria: * Clear diagnosis of macular hole; * The minimum diameter of the macular hole is \>400 μm; * Without serious systemic disease that make patients can not be operated; Exclusion Criteria: * suffering from severe retinal diseases such as: diabetic retinopathy, age-related macular degeneration, peripheral retinal detachment, PVR, etc.; * opacitas in the refractive medium can not perform Angio-OCT and visual acuity examination; * eye acute and chronic inflammation, such as acute contagious conjunctivitis, acute and chronic keratitis, acute dacryocystitis; * traumatic macular hole, secondary macular hole, high myopia macular hole, etc.; * having a history of vitrectomy surgery; * glaucoma in stage of preclinical, severe stenosis or closure;