Distortion of vision in one eye is also known as optic distortion, which is a change in the shape of the object seen. Possible causes include astigmatism, lens-less eyes wearing highly convex lenses, distorted optic cell alignment, such as central placoid chorioretinopathy, macular cystoid edema, retinal and choroidal tumors. Retinal detachment affecting the macular area, vitreous hyperplasia and traction in the posterior pole, idiopathic macular fissure, retinal anterior membrane, and after retinal detachment surgery. Therefore, once the distortion of seeing occurs, you should go to the hospital for dilated pupil and detailed fundus examination in time.