Ultrahigh myopia usually refers to patients with myopia of 1000 degrees or more and an eye axis length of more than 28mm. Myopia is generally classified as mild, moderate, or high according to the degree (degrees) of myopia. Every 300 degrees is a step, i.e., 0-300 degrees is mild, 300-600 degrees is moderate, and over 600 degrees is high. In high myopia, more than 1000 degrees will also be called super high myopia. Super high myopia is all pathological myopia, which is related to genetics. The eye axis can be understood as the front and back diameter of the human eye. The normal adult eye axis is about 24mm (usually not more than 1mm), and the myopia increases by about 300 degrees for every 1mm increase in the eye axis. Patients with pathological myopia are prone to complications of fundus diseases due to excessive elongation of the eye axis, such as high myopic macular degeneration, choroidal neovascularization, retinal fissures, retinal detachment, etc. They are also at high risk for many ophthalmic diseases such as glaucoma and cataracts. The treatment of ultra-high myopia has been a major problem in the ophthalmology field. IOL implantation for lens-bearing eyes has a greater scope of application than corneal refractive surgery and has so far become a better choice for patients with ultra-high myopia to correct their vision. In addition, it is also important for patients with hyperopic myopia to have regular eye examinations at eye clinics. In summary, hyperopic myopia refers to pathological myopia of 1000 degrees or more and an eye axis of 28mm or more.