Difference between revisions of Axial length
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'''Axial length''' of the eyeball is the distance from the lens to the retina. | '''Axial length''' of the eyeball is the distance from the lens to the retina. Axial elongation is the scientifically accurate reason why most myopes have [[myopia]], as other causes are rare. | ||
==Biology== | ==Biology== | ||
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[[Hyperopic defocus]], excessive [[myopic defocus]], form deprivation, and [[accommodation]] strain can all cause [[axial elongation]]. In particular, using distances glasses for close-up is a very common cause of it. | [[Hyperopic defocus]], excessive [[myopic defocus]], form deprivation, and [[accommodation]] strain can all cause [[axial elongation]]. In particular, using distances glasses for close-up is a very common cause of it. | ||
==Controversy== | |||
Hyperopes tend not to report back with any progress toward 20/20 vision. An implication is that EndMyopia techniques may not work for far-sighted people. This may indicate that we aren't changing axial length with EndMyopia techniques. Another theory is that EndMyopia might work by flattening the lens. It's easier to flatten a lens than to squeeze it, so this would explain why EndMyopia doesn't seem to attract people with hyperopic vision. Probably related, see also [[Dr. Carr]]. | |||
==Further Reading== | |||
* https://pubmed.ncbi.nlm.nih.gov/19204786/ | |||
* http://www.molvis.org/molvis/v15/a31/mv-v15-a31-yang.pdf | |||
* https://endmyopia.org/wp-content/uploads/2017/02/Reduction_in_Axial_Length_with_Age__An.3.pdf | |||
* https://iovs.arvojournals.org/article.aspx?articleid=2126435 | |||
==References== | ==References== | ||