Visual acuity of 4.7 usually refers to naked eye vision, while naked eye vision of 4.7 is not necessarily myopia, it may be normal vision in developing children, or it may be farsightedness, astigmatism, etc. It should be judged according to specific symptoms and cannot be generalized. Clinically, a naked eye vision of 5.0 or higher is considered normal vision. A naked eye visual acuity of 4.7 usually indicates decreased vision. Nearsightedness, amblyopia, farsightedness, astigmatism or conjunctivitis can all lead to vision loss. Myopic people usually have symptoms such as blurred vision in the distance, clear vision in the near, and frequent squinting; farsighted people have easily fatigued eyes; mild farsightedness is clear in the distance but unclear in the near; severe farsighted people may have unclear vision in the far and near; amblyopic people often have strabismus and always prefer to see with one eye; conjunctivitis and other eye diseases are often accompanied by symptoms such as foreign body sensation in the eyes, redness, tearing, and itching. Often tests such as dilated eye examinations help to clarify the cause of vision loss, and the results of this test can confirm the diagnosis of myopia. Therefore, if you find that your vision is 4.7, you can go to the ophthalmology department for a dilated eye exam to clarify the cause and wear appropriate glasses for correction.