An important reason on which visual acuity depends has been found

By | February 13, 2020
An important reason on which visual acuity depends has been found

A team of researchers from the University of Rochester published a study that explained what visual acuity may depend on. It turned out that not only heredity, injuries and improper lighting can affect premature vision loss.

Research has shown that even the smallest eye movements that we make mechanically can affect the development of myopia and farsightedness. Our work will help add useful knowledge on the prevention of good vision,
Scientists said.
Involuntary eye micro-cuts are called eye fixation. They were previously thought to not play a significant role in the visual perception process, but new research shows that these eye movements give the brain signals that directly affect the quality of our vision.

To test this hypothesis, American scientists invited volunteers with perfect vision. For several hours, scientists tested their visual abilities and tested eye health in standard medical ways, such as reading letters on Snellen’s table.

First, the participants were placed six meters from the screen so that they could accurately name the letters on at least the eighth line. Scientists have specified that it is normal for a view of the level 1.0.

At the next stage, the volunteers were also asked to concentrate on the table, but this time the scientists moved it slightly to observe the micro-movements of the participants’ eyes.

When the image is static, the eye uses all the retina receptors to recognize it. But once the subject starts to move, some of the receptors stop working, and the person begins to see worse. This was the experiment: participants on average distinguished letters only on the sixth line from above,
The study authors said.
So far, scientists are not in a hurry to draw final conclusions but suggest that based on the collected data it is possible to develop a therapy that improves the sharpness in people with short-sightedness and farsightedness.

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