Fish oil may help prevent blindness

Discussion in 'Optometry Archives' started by Roman Bystrianyk, Jun 26, 2007.

  1. Roger Highfield, Science Editor, "Fish oil may help prevent
    blindness", Telegraph, June 25, 2007,
    Link: http://www.telegraph.co.uk/earth/main.jhtml?xml=/earth/2007/06/25/eafish25.xml

    Eating food rich in fish oils could help protect against certain forms
    of blindness, according to a new study.

    Intake of the omega-3 fatty acids, found in popular fish-oil
    supplements, has given encouraging results in tests on mice.

    Tests are now due to begin on premature babies, who are at risk of
    loss of vision.

    The oils are intended to help fight abnormal blood vessel growth in
    the eyes, known as retinopathy.

    In cases of retinopathy, the retina becomes oxygen-starved and sends
    out alarm signals that spur new vessel growth.

    But the new vessels grow abnormally and are malformed, leaky and over-
    abundant.

    Eventually, the abnormal vessels pull the retina away from its
    supporting layer, ultimately causing blindness.

    In the study, published in the journal Nature Medicine, mice were fed
    diets rich in either omega-3 fatty acids (comparable to a Japanese
    diet) or omega-6 fatty acids (comparable to a Western diet).

    Mice on the omega-3 diet, rich in DHA had less blood vessel loss in
    the retina than the omega-6-fed mice. The blood vessel loss was also
    cut by up to a half.
     
    Roman Bystrianyk, Jun 26, 2007
    #1
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