How much is the naked eye vision of myopia of 200 degrees?

Different people's naked eye vision may be completely different. Some people have strong eye adjustment ability. Although they have 200 degrees of myopia, their naked eye vision can reach 1.0 within the normal range. However, some people's naked eye vision drops very obviously, even below 0.4.

In fact, people with the same degree of myopia may have different naked eye vision. After myopia occurs, the high beam is focused in front of the retina, and the imaging on the retina is no longer the focus, but will become a blurred spot.

However, the photosensitive cells in each person's retina have different ability to distinguish this fuzzy spot, so different people have the same degree of myopia, but their naked eye vision is different. For example, some children are nearsighted at 200 degrees, but their naked eye vision is still 0.6, and some children are also nearsighted at 200 degrees (the blur of imaging on the retina is the same as the former), but their naked eye vision is only 0.3.

However, parents should pay attention to that if a nearsighted child often squints or likes to look sideways when watching TV or watching the distance, he must optometry, otherwise it will not only aggravate the child's visual fatigue, but also further deepen the degree of myopia.

Extended data

Before wearing glasses, children's brains will be forced to deal with blurred images caused by myopia, but when children wear glasses for vision correction, their brains are "unwilling" to recognize blurred images after taking off glasses, which is the reason why their naked eyes are "worse".

The fact is that the visual acuity of the naked eye has not decreased, but the brain is unwilling to adapt, just as people will feel heavier after walking out of the swimming pool. In fact, their weight has not changed, but the human body has adapted to the buoyancy of water.

Vision is a subjective psychophysical index, which is influenced by diopter, retinal resolution, brain recognition and other factors. After myopia, naked eye vision will not get worse and worse because of wearing glasses. Once a child is nearsighted, it is necessary to have glasses in a regular hospital to help correct his vision.

People's Network-Is naked eye vision and myopia the same thing? This is a bit unreliable.