3 ms·

Awesome, thanks. My searches must have missed these, as I was focusing on UV radiation rather than outdoor activity. It looks like there's still a ways to go to

Awesome, thanks. My searches must have missed these, as I was focusing on UV radiation rather than outdoor activity. It looks like there's still a ways to go to understanding the causes of myopia.

walterbell 9y ago
There's a feedback model which claims that under-correction can help reduce myopia, which is especially relevant for extended computer usage: Antonio Medina, Detecting the effect of under-correcting myopia, 2015: https://www.academia.edu/29691342/Detecting_the_effect_of_under-correcting_myopia https://www.academia.edu/29691342/Detecting_the_effect_of_un... Peter R Greene and Antonio Medina, The Progression of Nearwork Myopia, 2016: https://www.omicsonline.org/open-access/the-progression-of-nearwork-myopia-OMOA-1000120.pdf https://www.omicsonline.org/open-access/the-progression-of-n...
- no_identd 9y ago
  Does this model DIRECTLY account for the research from this paper: http://journals.lww.com/optvissci/Abstract/2013/11000/Spherical_Aberration_and_the_Sign_of_Defocus.18.aspx http://journals.lww.com/optvissci/Abstract/2013/11000/Spheri... Last time I checked, most myopia research didn't and sidelined it although it explains so much, I consider it an extremely underrated paper.
  - walterbell 9y ago
    Not sure. A couple of other studies below. More info in this thread: https://news.ycombinator.com/item?id=16147020 https://news.ycombinator.com/item?id=16147020 Scott A. Read; Michael J. Collins; Beata P. Sander, Human Optical Axial Length and Defocus, Investigative Ophthalmology & Visual Science, December 2010, http://iovs.arvojournals.org/article.aspx?articleid=2126435 http://iovs.arvojournals.org/article.aspx?articleid=2126435 Significant changes in optical axial length occurred in human subjects after 60 minutes of monocular defocus. The bidirectional optical axial length changes observed in response to defocus implied the human visual system is capable of detecting the presence and sign of defocus and altering optical axial length to move the retina toward the image plane. Vasudevan, Ciuffreda, Ludlam. Accommodative Training to Reduce Nearwork-Induced Transient Myopia, Optometry and Vision Science: November 2009, https://journals.lww.com/optvissci/Abstract/2009/11000/Accommodative_Training_to_Reduce_Nearwork_Induced.11.aspx https://journals.lww.com/optvissci/Abstract/2009/11000/Accom... Training of the accommodative system in these progressing myopes resulted in improved dynamics in both laboratory and clinical measures. This is consistent with earlier reports in the literature of improvement in symptomatic myopic subjects.
hyperpallium 9y ago
Outdoor activity also involves focussing at longer distances than indoors.

Awesome, thanks. My searches must have missed these, as I was focusing on UV radiation rather than outdoor activity. It looks like there's still a ways to go to understanding the causes of myopia.

walterbell 9y ago

There's a feedback model which claims that under-correction can help reduce myopia, which is especially relevant for extended computer usage: Antonio Medina, Detecting the effect of under-correcting myopia, 2015: https://www.academia.edu/29691342/Detecting_the_effect_of_under-correcting_myopia https://www.academia.edu/29691342/Detecting_the_effect_of_un... Peter R Greene and Antonio Medina, The Progression of Nearwork Myopia, 2016: https://www.omicsonline.org/open-access/the-progression-of-nearwork-myopia-OMOA-1000120.pdf https://www.omicsonline.org/open-access/the-progression-of-n...

no_identd 9y ago
Does this model DIRECTLY account for the research from this paper: http://journals.lww.com/optvissci/Abstract/2013/11000/Spherical_Aberration_and_the_Sign_of_Defocus.18.aspx http://journals.lww.com/optvissci/Abstract/2013/11000/Spheri... Last time I checked, most myopia research didn't and sidelined it although it explains so much, I consider it an extremely underrated paper.
- walterbell 9y ago
  Not sure. A couple of other studies below. More info in this thread: https://news.ycombinator.com/item?id=16147020 https://news.ycombinator.com/item?id=16147020 Scott A. Read; Michael J. Collins; Beata P. Sander, Human Optical Axial Length and Defocus, Investigative Ophthalmology & Visual Science, December 2010, http://iovs.arvojournals.org/article.aspx?articleid=2126435 http://iovs.arvojournals.org/article.aspx?articleid=2126435 Significant changes in optical axial length occurred in human subjects after 60 minutes of monocular defocus. The bidirectional optical axial length changes observed in response to defocus implied the human visual system is capable of detecting the presence and sign of defocus and altering optical axial length to move the retina toward the image plane. Vasudevan, Ciuffreda, Ludlam. Accommodative Training to Reduce Nearwork-Induced Transient Myopia, Optometry and Vision Science: November 2009, https://journals.lww.com/optvissci/Abstract/2009/11000/Accommodative_Training_to_Reduce_Nearwork_Induced.11.aspx https://journals.lww.com/optvissci/Abstract/2009/11000/Accom... Training of the accommodative system in these progressing myopes resulted in improved dynamics in both laboratory and clinical measures. This is consistent with earlier reports in the literature of improvement in symptomatic myopic subjects.

hyperpallium 9y ago

Outdoor activity also involves focussing at longer distances than indoors.