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posted by mrpg on Sunday October 14 2018, @02:42PM   Printer-friendly
from the now-I-see dept.

Submitted via IRC for chromas

Human Retinas Grown In A Dish Reveal Origin Of Color Vision

In order to see the red of a sunset or the green of spring leaves, developing human eyes need to get the right hormone at the right time.

That's the finding of a team of scientists who studied how color vision develops using hundreds of human retinas grown in the lab.

The discovery, published Thursday in the journal Science, could help accelerate current efforts to cure colorblindness. It could also lead to new treatments for diseases including macular degeneration, the leading cause of vision loss.


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  • (Score: 0) by Anonymous Coward on Sunday October 14 2018, @06:54PM (1 child)

    by Anonymous Coward on Sunday October 14 2018, @06:54PM (#748683)

    Used to have 20/20 vision, but past 40s it deteriorated pretty rapidly.

    • (Score: 0) by Anonymous Coward on Sunday October 14 2018, @11:30PM

      by Anonymous Coward on Sunday October 14 2018, @11:30PM (#748751)

      Just the opposite, have had 20/40 vision (need glasses for sharp distance vision) since high school--and now in my early 60s. One eye doc told me that my eyes were "off" somehow (don't remember details), but that this particular condition is very stable. That was 25 years ago... glasses from even further back are nearly correct, but I have had small tweaks in the prescription since then.

  • (Score: 0) by Anonymous Coward on Sunday October 14 2018, @09:04PM

    by Anonymous Coward on Sunday October 14 2018, @09:04PM (#748715)

    They removed the eyes from hundreds of children so they could cure colorblindness. I hope they at least paid for the children's guide dogs after blinding then.

  • (Score: 2, Interesting) by Muad'Dave on Monday October 15 2018, @12:31PM (1 child)

    by Muad'Dave (1413) on Monday October 15 2018, @12:31PM (#748987)

    his lab is now preparing to take on two new goals.

    "One is to restore color vision to people that are colorblind," he says. What his lab is learning, he says, could help speed an existing effort to use gene therapy to cure colorblindness.

    Even if you can get the correct cells to grow, how are you going to get the brain wired in and interpreting the new impulses as something it's never encountered?

    • (Score: 0) by Anonymous Coward on Tuesday October 16 2018, @03:31PM

      by Anonymous Coward on Tuesday October 16 2018, @03:31PM (#749555)

      Colorblindness is an advantage because you can see through most common camouflage schemes.

      Just like having a slightly smaller head (microcephaly) at birth makes birthgiving easier but they call it a disease just because having a tiny head is associated w a small brain (micrencephaly) and mental impairment. These people make up fake diseases.

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