Visual acuity of 1.0 is 5.0 Visual acuity examination is the most common examination program in ophthalmology. At present, there are two commonly used methods of visual acuity representation in China: one is the decimal recording method and the other is the five-point recording method. The standard logarithmic visual acuity chart has a total of 14 rows, with the letter E getting smaller and smaller from top to bottom, and the corresponding visual acuity from top to bottom is 0.1 (4.0), 0.12 (4.1), 0.15 (4.2), 0.2 (4.3), 0.25 (4.4), 0.3 (4.5), 0.4 (4.6), 0.5 (4.7), 0.6 (4.8), 0.8 (4.9) , 1.0 (5.0), 1.2 (5.1), 1.5 (5.2). Vision needs to be examined in a formal institution. If there is any abnormality and the vision cannot reach the normal standard, it is recommended to consult the doctor in time to find out the cause of the disease and receive regular treatment.