How many degrees of myopia is 4.8?

There are many indicators for evaluating a person's vision. Do you remember that during a physical examination or when you went to the hospital for a special eye examination, the result was the naked eye vision, such as 4.8 or 5.0. In addition, if you go to an optical shop to get glasses, the result is generally the degree, which mainly refers to the degree of myopia glasses, such as 300 degrees or 400 degrees. So if the naked eye vision is 4.8, how much is the myopia degree converted?

How many degrees of myopia is 48?

What is the visual acuity of 4.8? How many degrees is 5.0 vision? 5.0 is a very normal eye color, and a myopia degree of 4.7 may cause a strong reaction, about -300 degrees. In the stable stage of myopia, it is only -100 to -200 degrees.

What is the visual acuity of 4.8? Visual acuity of 4.8 is 150 degrees, and the normal visual acuity level is above 1.0. When using a vision chart to measure vision, the tester should be 5 meters away from the chart and take off his glasses. The left eye and the right eye should be measured separately. The degree of the two eyes will be different. There is a calculation formula for visual acuity.

How much myopia is a visual acuity of 4.8?

In fact, there is no absolute relationship between vision and degree. The degree is not proportional to naked eye vision. For example, if a person has 800 degrees of myopia, he can see 0.12 when looking at the distance vision chart, while another person has 300 degrees of myopia and can only see 0.1 when looking at the distance vision chart. The 1.5 mentioned here refers to visual acuity, that is, the number represented by the row in the international standard visual acuity chart. 1.5 means that one can see the 13th row. This is just an examination standard.

Many friends want to understand the relationship between visual acuity and refraction (degree of myopia) on the eye chart. In fact, these two concepts are independent of each other, and there is no absolutely accurate conversion relationship between them. Generally speaking, people with refractive error have poor eyesight. The higher the refractive error, the lower the naked eye vision. But this is not absolute. Some people have a low refractive power but very poor visual acuity, because the quality of vision is affected by more than just the refractive power.

When fitting glasses, you should base your judgment on the data given by the optometrist's comprehensive test, rather than judging based on the number of your vision. In addition, myopia occurs in most young people, so attention should be paid to preventing myopia. There are many ways to prevent myopia. You should pay attention to doing eye exercises and eye exercises on a daily basis, pay more attention to nutritional supplements and protein intake. In addition, wolfberry and chrysanthemum have the effect of improving eyesight, and you can often soak them in water to drink.