Axial length - Revision history

Angel at 09:27, 20 February 2022

2022-02-20T09:27:24Z

← Older revision		Revision as of 09:27, 20 February 2022
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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==		==Further Reading==

Angel: /* Further Reading */

2022-02-02T08:22:56Z

Angel at 08:21, 2 February 2022

2022-02-02T08:21:24Z

← Older revision		Revision as of 08:21, 2 February 2022
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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.
			==Further Reading==

			* https://pubmed.ncbi.nlm.nih.gov/19204786/
			* https://chemport.cas.org/cgi-bin/sdcgi?APP=ftslink&action=reflink&origin=karger2&version=1.0&coi=1%3ACAS%3A528%3ADC%252BD1MXitFOgsLo%253D&md5=9cabd3078e641623141a8226331cdead

			* 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==

User at 17:40, 20 September 2021

2021-09-20T17:40:52Z

← Older revision		Revision as of 17:40, 20 September 2021
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	'''Axial length''' of the eyeball is the distance from the lens to the retina. ~~Elongation~~ is the scientifically accurate reason why ~~anyone has~~ [[myopia]].		'''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==

User: /* How it can be increased */

2021-09-20T17:38:55Z

How it can be increased

← Older revision		Revision as of 17:38, 20 September 2021
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	:''Main article: [[Axial elongation]]''		:''Main article: [[Axial elongation]]''

	[[Hyperopic defocus]], excessive [[myopic defocus]], ~~and~~ form deprivation can 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.

	==References==		==References==

User: /* How it can be increased */

2021-09-19T19:07:55Z

How it can be increased

← Older revision		Revision as of 19:07, 19 September 2021
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	:''Main article: [[Axial elongation]]''		:''Main article: [[Axial elongation]]''

	[[Hyperopic defocus]], excessive [[myopic defocus]], and form deprivation can cause [[axial elongation]].		[[Hyperopic defocus]], excessive [[myopic defocus]], and form deprivation can cause [[axial elongation]]. In particular, using distances glasses for close-up is a very common cause of it.

	==References==		==References==

User: /* How it can be increased */

2021-09-19T19:04:56Z

How it can be increased

← Older revision		Revision as of 19:04, 19 September 2021
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	:''Main article: [[Axial elongation]]''		:''Main article: [[Axial elongation]]''


	[[Hyperopic defocus]], excessive [[myopic defocus]], and form deprivation can cause [[axial elongation]].		[[Hyperopic defocus]], excessive [[myopic defocus]], and form deprivation can cause [[axial elongation]].

User at 19:04, 19 September 2021

2021-09-19T19:04:50Z

← Older revision		Revision as of 19:04, 19 September 2021
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	==How it can be reduced==		==How it can be reduced==
	[[Myopic defocus]], as well as conscious accommodation of the ciliary muscle during [[active focus]]. ~~Finally,~~ good [[distance vision]] practices.		[[Myopic defocus]], as well as conscious accommodation of the ciliary muscle during [[active focus]], can cause axial shortening. Having good [[close-up]] and [[distance vision]] practices helps.

			==How it can be increased==

			:''Main article: [[Axial elongation]]''


			[[Hyperopic defocus]], excessive [[myopic defocus]], and form deprivation can cause [[axial elongation]].

	==References==		==References==

Divenal at 14:14, 15 June 2020

2020-06-15T14:14:31Z

← Older revision		Revision as of 14:14, 15 June 2020
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	==Biology==		==Biology==
	It would require precision engineering to be able to grow an eye that was perfectly [[emmetropic]] at birth. Instead, it is of approximate dimensions, and feedback during postnatal development tunes the axial length to match the focusing system. <ref>{{cite journal\| author=Wallman J, Winawer J\| title=Homeostasis of eye growth and the question of myopia. \| journal=Neuron \| year= 2004 \| volume= 43 \| issue= 4 \| pages= 447-68 \| pmid=15312645 \| doi=10.1016/j.neuron.2004.08.008 \| pmc= \| url=https://www.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pubmed&tool=sumsearch.org/cite&retmode=ref&cmd=prlinks&id=15312645}}</ref>		It would require precision engineering to be able to grow an eye that was perfectly [[emmetropic]] at birth. Instead, it is of approximate dimensions, and feedback during postnatal development tunes the axial length to match the focusing system. Two mechanisms are available: changing the thickness of the [[choroid]], and changing the length of the eyeball itself. <ref>{{cite journal\| author=Wallman J, Winawer J\| title=Homeostasis of eye growth and the question of myopia. \| journal=Neuron \| year= 2004 \| volume= 43 \| issue= 4 \| pages= 447-68 \| pmid=15312645 \| doi=10.1016/j.neuron.2004.08.008 \| pmc= \| url=https://www.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pubmed&tool=sumsearch.org/cite&retmode=ref&cmd=prlinks&id=15312645}}</ref>

	==How it can be reduced==		==How it can be reduced==

Divenal: /* Biology */ Just some placeholder text so that I can include a reference to a paper that goes into all the gory details.

2020-06-15T13:03:10Z

Biology: Just some placeholder text so that I can include a reference to a paper that goes into all the gory details.

← Older revision		Revision as of 13:03, 15 June 2020
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	==Biology==		==Biology==
			It would require precision engineering to be able to grow an eye that was perfectly [[emmetropic]] at birth. Instead, it is of approximate dimensions, and feedback during postnatal development tunes the axial length to match the focusing system. <ref>{{cite journal\| author=Wallman J, Winawer J\| title=Homeostasis of eye growth and the question of myopia. \| journal=Neuron \| year= 2004 \| volume= 43 \| issue= 4 \| pages= 447-68 \| pmid=15312645 \| doi=10.1016/j.neuron.2004.08.008 \| pmc= \| url=https://www.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pubmed&tool=sumsearch.org/cite&retmode=ref&cmd=prlinks&id=15312645}}</ref>

	==How it can be reduced==		==How it can be reduced==

← Older revision		Revision as of 08:22, 2 February 2022
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	==Further Reading==		==Further Reading==

	* https://pubmed.ncbi.nlm.nih.gov/19204786/		* https://pubmed.ncbi.nlm.nih.gov/19204786/
	* ~~https~~://~~chemport~~.~~cas~~.org/~~cgi~~-~~bin/sdcgi?APP=ftslink&action=reflink&origin=karger2&version=1~~.~~0&coi=1%3ACAS%3A528%3ADC%252BD1MXitFOgsLo%253D&md5=9cabd3078e641623141a8226331cdead~~		* 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://endmyopia.org/wp-content/uploads/2017/02/Reduction_in_Axial_Length_with_Age__An.3.pdf