Vision of 4.5 is equivalent to a fraction of a point

Visual acuity 4.5 is generally equivalent to uncorrected visual acuity of about 0.3.

At present, the more commonly used visual acuity examination forms in clinical practice include logarithmic visual acuity chart, fractional visual acuity chart, etc. Visual acuity 4.5 is generally the result of logarithmic visual acuity chart, logarithmic visual acuity chart takes 5.0 as the standard visual acuity, visual acuity 4.5 indicates that the eye's visual acuity is lower than the standard visual acuity. If converted into fractional visual acuity chart, it is generally equivalent to uncorrected visual acuity of about 0.3. However, the specific conversion results may vary according to individual differences, so if there are relevant questions, it is recommended to consult a doctor for detailed inquiry, and the doctor will determine the final vision according to relevant examinations.