Eye 4.7 generally refers to the level of visual acuity, but the patient’s refractive error cannot be inferred from the visual acuity, and the patient can be examined by an optometrist to clarify the degree of refractive error.
Refractive errors such as myopia can lead to vision loss, generally the higher the degree of myopia, the more obvious vision loss. The higher the degree of myopia, the more pronounced the vision loss. However, the degree of myopia and the patient’s visual acuity do not have a one-to-one quantitative relationship, so it is not possible to infer the degree of myopia based on the patient’s visual acuity. If the patient wants to determine the degree of myopia, the patient needs to undergo an optometric examination.
In addition to refractive errors, cataracts, glaucoma and retinal detachment can also cause vision loss. Cataract patients may experience blurred vision due to clouding of the lens. Surgical treatments, such as cataract ultrasonography combined with IOL implantation, can be performed to improve vision.
It is recommended that patients with vision loss seek prompt medical attention to evaluate their condition and follow the doctor’s instructions for treatment.