Visual acuity of 5.3 is the visual acuity recorded by the five-point visual acuity recording method, which is a normal level of visual acuity and is better. Visual acuity refers to the ability of the retina to distinguish images, and the normal adult visual acuity level is 5.0 and above, so the patient’s visual acuity of 5.3 indicates that the patient has normal visual acuity. Visual acuity mainly reflects the visual function of the macula, which can be categorized into near and far vision. The visual acuity measured by wearing glasses is the corrected visual acuity, while that without glasses is called the naked-eye visual acuity. People should pay attention to develop good eye habits, avoid watching electronic products for a long time, and consult a doctor immediately if there is any eye discomfort. Cataracts, glaucoma, retinal detachment, etc. can cause vision loss. It is recommended that patients with vision loss should consult a doctor in a timely manner to assess their condition and follow the doctor’s instructions for treatment.