Accompanying with the development of technological level, optical coherence tomography plays a more and more important role in predicting the surgical outcome for idiopathic macular hole. Preoperative morphologic parameters like minimum diameter, base diameter, maximum height, macular hole index, hole form factor, tractional hole index, macular hole closure index, photoreceptor inner-outer segment junction, cone outer segment tips line, central subfield retinal thickness and macular hole inner opening diameter were proved correlated to postoperative visual acuity and anatomical results. It has important application value to know these predictors to judge the surgical outcome and deepen understanding of idiopathic macular hole.