The inability to find out the degree of the eyes may be related to the optometry equipment, the high degree of the eyes, eye diseases and so on. 1. Optometry equipment: the eyes can not find the degree of first consider the optometrist and other testing equipment problems, or optometrists do not know how to operate the equipment, the emergence of this abnormal situation. 2. Eye degree is too high: the eye can not find the degree of the eye should also consider the eye degree is too high, you need to do funduscopic examination and other examination programs, in order to clarify the degree of the eye. 3. eye disease: eyes can not find degrees also consider other eye disease factors, such as corneal clouding, cataracts and other refractive media opacity, can also cause degrees can not be found. It is recommended to go to the ophthalmology department of the regular hospital when the eyes can not be detected by a professional doctor to re-open the optometry test.