Seeing objects as small is a type of perceptual syndrome disorder, in which the optic nerve degenerates and loses its conduction function due to various reasons, resulting in blurred vision or even blindness. For example, seeing an object image much smaller than the physical object. Optic nerve atrophy is a kind of degenerative lesion of optic nerve, which is mostly caused by the development of high wind cataract, storm blindness, green wind cataract and other diseases to the late stage. So treating the primary disease and avoiding deterioration is the main prevention method. Through drug treatment. However, there is no good treatment, the best treatment is to combine with psychotherapy, and actively treat the primary disease. Avoid head trauma and falls, actively treat high blood pressure, diabetes and other underlying diseases. There are also visual deformities (distortions) and phantom vision. The former is still fundus disease, such as retinal chorioretinopathy, macular degeneration, high myopia combined with fundus changes, macular hemorrhage, etc.; phantom vision is common in delirious people, but also in the occipital cortex of the brain stimulation or disease, these patients appear in front of the eyes of a variety of different images, while in fact, in front of nothing. In addition to regulatory attention to appropriate eye protection, other long-term visual objects become smaller and farther, should be timely to the hospital for specific examination, according to the results of the examination of the symptomatic treatment as prescribed by the doctor.