4.4 How many degrees is vision?

4.4 Visual acuity is generally uncertain.

Visual acuity 4.4 is generally obtained through the examination of the visual chart, generally unable to accurately convert with refractive power. Normal visual acuity standard is 5.0, visual acuity 4.4 is lower than normal visual acuity standard, patients can further mydriasis optometry to make clear judgment, patients can use appropriate glasses or corneal contact lenses under the guidance of doctors to correct visual acuity.

Daily attention should be paid to protecting eyes, reducing the time of continuous use of eyes, but also pay attention to the distance between eyes, choose the right light to work reading, appropriately increase the intake of vegetables and deep-sea fish, and promote the development of optic nerve.