Quality of vision "decided well before birth"

Quality of vision "decided well before birth"

The quality of a person"s eyesight is often decided long before they are born, a recent study carried out in the US has found.

According to researchers at the Yale School of Medicine, a pattern of spontaneous activity within the brain which occurs while the foetus is developing is what decides whether a person"s vision will be good, average or poor.

Michael Crair, the William Ziegler III associate professor of Vision Research at the facility, genetically manipulated the retina of mice early in development to alter neural activity and found their vision did not develop properly.

"But we found that it is actually the pattern of ongoing spontaneous activity in the developing retina, not genes alone, that play a crucial role in the development of the visual system," Professor Crair commented.
According to the expert, this may pave the way for new types of treatment to help improve people"s vision.

In other research, a study published in the journal Nature Communications recently found that a protein in the human eye can effectively act as a magnet and help to determine a person"s positioning on the earth.

by Alexa Kaczka

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