Difference between revisions of Lens-induced myopia

Jump to navigation Jump to search
m (Reference edited with ProveIt)
Tag: ProveIt
m (syntax)
(16 intermediate revisions by 5 users not shown)
Line 1: Line 1:
'''Lens-induced myopia''' is a result of [[hyperopic defocus]], typically when someone wears [[distance vision]] glasses for [[close-up]] use.


It has been show in in studies that hyperopic [[blur|defocus]] causes myopia.
'''Lens-induced myopia''' is the generally accepted observation <ref>[https://scholar.google.com/scholar?hl=en&q=lens+induced+myopia Google Scholar list of Lens Induced Myopia studies]</ref> (by researchers, if not the mainstream optometry industry - citation needed) that wearing corrective lenses seems to somehow cause myopia to worsen. Typically when someone wears [[distance vision]] glasses for [[close-up]] use.


Proteomic analysis of chick retina during early recovery from lens‑induced myopia - Yun Yun Zhou et al. - May 3, 2018 https://www.spandidos-publications.com/mmr/18/1/59?text=fulltext
The actual mechanism is still an area of active research, but the underlying cause appears to be [[axial elongation]]<ref>
{{cite journal| author=McBrien NA, Adams DW| title=A longitudinal investigation of adult-onset and adult-progression of myopia in an occupational group. Refractive and biometric findings. | journal=Invest Ophthalmol Vis Sci | year= 1997 | volume= 38 | issue= 2 | pages= 321-33 | pmid=9040464 | doi= | pmc= | url=https://www.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pubmed&tool=sumsearch.org/cite&retmode=ref&cmd=prlinks&id=9040464  }}
</ref>.


It has been shown in studies that myopic defocus is protective against myopia progression.
One of several hypotheses is that it is result of [[hyperopic defocus]].<ref name="Proteomic analysis of chick retina during early recovery from lens‑induced myopia">
{{Cite journal |last=Zhou |first=Yun Yun |last2=Chun |first2=Rachel Ka Man |last3=Wang |first3=Jian Chao |last4=Zuo |first4=Bing |last5=Li |first5=King Kit |last6=Lam |first6=Thomas Chuen |last7=Liu |first7=Quan |last8=To |first8=Chi-Ho |date=2018-05-03 |title=Proteomic analysis of chick retina during early recovery from lens‑induced myopia |url=http://www.spandidos-publications.com/10.3892/mmr.2018.8954/abstract |journal=Molecular Medicine Reports |volume=18 |issue=1 |pages=59–66 |doi=10.3892/mmr.2018.8954 |issn=1791-2997}}</ref>


Long -term effects of optical defocus on eye growth and refractogenesis
It has been shown in studies that myopic defocus is protective against myopia progression.<ref name="Long -term effects of optical defocus on eye growth and refractogenesis">
Elena Tarutta et al.
{{Cite journal |last=Tarutta |first=Elena |date=2016 |title=Long -term effects of optical defocus on eye growth and refractogenesis |url=https://www.pum.edu.pl/__data/assets/pdf_file/0007/112849/PomeranianJLifeSci_62-01_025-030.pdf |journal=Pomeranian J Life Sci |volume=62(1) |pages=25–30}}</ref>
Pomeranian J Life Sci 2016;62(1):25-30
https://www.pum.edu.pl/__data/assets/pdf_file/0007/112849/PomeranianJLifeSci_62-01_025-030.pdf


A core tenant of EM is that doing [[near work]] in lenses designed for [[distance work]] causes myopia progression.  Even if hyperopic blur is not induced by the lenses, the [[accommodation]] system is being constantly stressed and this encourages [[eye axial lengthening]].  This is supported by the fact that both [[bifocals]] and [[multifocals]], which allow the eye to use less accommodation to do near work, are protective against myopia progression <ref name="Can Bifocals Slow Myopia Progression?">{{Cite journal |last=Gw |first=Fulk |last2=La |first2=Cyert |date=1996 Dec |title=Can Bifocals Slow Myopia Progression? |url=https://pubmed.ncbi.nlm.nih.gov/9286316/ |journal=Journal of the American Optometric Association |language=en |volume=67(12) |pages=749-754 |pmid=9286316 |via=PubMed}}</ref><ref name="Myopia Progression Control Using Bifocal Contact Lenses">{{Cite journal |last=Aller |first=Thomas |last2=Grisham |first2=David |date=2000-12 |title=(OR-103)MYOPIA PROGRESSION CONTROL USING BIFOCAL CONTACT LENSES: Poster # 92 |url=https://journals.lww.com/optvissci/Citation/2000/12001/_OR_103_MYOPIA_PROGRESSION_CONTROL_USING_BIFOCAL.311.aspx |journal=Optometry and Vision Science |language=en-US |volume=77 |issue=12 |pages=187 |issn=1538-9235}}</ref><ref name="Myopia Progression With Biofocal Soft Contact Lenses - A Twin Study">{{Cite journal |last=Aller |first=Thomas |date=2002-12-13 |title=MYOPIA PROGRESSION WITH BIFOCAL SOFT CONTACT LENSES - A TWIN STUDY.: Poster # 142 |url=https://journals.lww.com/optvissci/Citation/2002/12001/MYOPIA_PROGRESSION_WITH_BIFOCAL_SOFT_CONTACT.346.aspx |journal=Optometry and Vision Science |language=en-US |volume=79 |issue=12 |pages=179 |issn=1538-9235}}</ref><ref name="Myopia Control With Bifocal Contact Lenses: A Randomized Clinical Trial">{{Cite journal |last=Aller |first=Thomas |last2=M |first2=Liu |last3=Cf |first3=Wildsoet |date=2016 Apr |title=Myopia Control With Bifocal Contact Lenses: A Randomized Clinical Trial |url=https://pubmed.ncbi.nlm.nih.gov/26784710/ |journal=Optometry and Vision Science Supplement |language=en |volume=93(4) |pages=344-52 |pmid=26784710}}</ref><ref name="Effect of Bifocal Lenses on the Rate of Childhood Myopia Progression">{{Cite journal |last=Goss |first=D A |date=1986 Feb |title=Effect of Bifocal Lenses on the Rate of Childhood Myopia Progression |url=https://pubmed.ncbi.nlm.nih.gov/3953756/ |journal=American journal of optometry and physiological optics |language=en |volume=63(2) |pages=135-41 |pmid=3953756}}</ref>
A core tenant of EM is that doing [[near work]] in lenses designed for [[distance work]] causes myopia progression.  Even if hyperopic blur is not induced by the lenses, the [[accommodation]] system is being constantly stressed and this encourages eye [[axial elongation]].<ref>
{{cite journal| author=Read SA, Collins MJ, Woodman EC, Cheong SH| title=Axial length changes during accommodation in myopes and emmetropes. | journal=Optom Vis Sci | year= 2010 | volume= 87 | issue= 9 | pages= 656-62 | pmid=20562668 | doi=10.1097/OPX.0b013e3181e87dd3 | pmc= | url=https://www.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pubmed&tool=sumsearch.org/cite&retmode=ref&cmd=prlinks&id=20562668  }}
</ref><ref>
{{cite journal| author=Mallen EA, Kashyap P, Hampson KM| title=Transient Axial Length Change during the Accommodation Response in Young Adults. | journal=Invest Ophthalmol Vis Sci | year= 2006 | volume= 47 | issue= 3 | pages= 1251-4 | pmid=16505066 | doi=10.1167/iovs.05-1086 | pmc= | url=https://www.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pubmed&tool=sumsearch.org/cite&retmode=ref&cmd=prlinks&id=16505066 }}
</ref>This is supported by the fact that both [[bifocals]] and [[multifocals]], which allow the eye to use less accommodation to do near work, are protective against myopia progression <ref name="Can Bifocals Slow Myopia Progression?">
{{Cite journal |last=Gw |first=Fulk |last2=La |first2=Cyert |date=Dec 1996 |title=Can Bifocals Slow Myopia Progression? |url=https://pubmed.ncbi.nlm.nih.gov/9286316/ |journal=Journal of the American Optometric Association |language=en |volume=67(12) |pages=749–754 |pmid=9286316 |via=PubMed}}
</ref><ref name="Myopia Progression With Biofocal Soft Contact Lenses - A Twin Study">
{{Cite journal |last=Aller |first=Thomas |date=2002-12-13 |title=MYOPIA PROGRESSION WITH BIFOCAL SOFT CONTACT LENSES - A TWIN STUDY.: Poster # 142 |url=https://journals.lww.com/optvissci/Citation/2002/12001/MYOPIA_PROGRESSION_WITH_BIFOCAL_SOFT_CONTACT.346.aspx |journal=Optometry and Vision Science |language=en-US |volume=79 |issue=12 |pages=179 |issn=1538-9235}}
</ref><ref name="Myopia Control With Bifocal Contact Lenses: A Randomized Clinical Trial">
{{Cite journal |last=Aller |first=Thomas |last2=M |first2=Liu |last3=Cf |first3=Wildsoet |date=Apr 2016 |title=Myopia Control With Bifocal Contact Lenses: A Randomized Clinical Trial |url=https://pubmed.ncbi.nlm.nih.gov/26784710/ |journal=Optometry and Vision Science Supplement |language=en |volume=93(4) |pages=344–52 |pmid=26784710}}
</ref><ref name="Effect of Bifocal Lenses on the Rate of Childhood Myopia Progression">
{{Cite journal |last=Goss |first=D A |date=Feb 1986 |title=Effect of Bifocal Lenses on the Rate of Childhood Myopia Progression |url=https://pubmed.ncbi.nlm.nih.gov/3953756/ |journal=American journal of optometry and physiological optics |language=en |volume=63(2) |pages=135–41 |pmid=3953756}}
</ref>


==Near Work Induced Myopia==
==Near Work Induced Myopia==
It is arguable if near work induced myopia is the same mechanism as lens induced myopia.  Both are cases where you are doing work closer than your corrected vision is designed to do, but obviously near work induced myopia can happen before the first pair of glasses, and the term is more heavily associated with [[Pseudomyopia]].
This term is more heavily associated with [[Pseudomyopia]].  Many optometrists recommend the [[20-20-20 rule]] to prevent eye strain,<ref name="American Optometric Association 20-20-20 rule poster">
{{Cite web |title=American Optometric Association 20-20-20 rule poster |date=2020-05-30 |website=American Optometric Association |url=https://www.aoa.org/documents/infographics/SYVM2016Infographics.pdf |access-date=2020-05-30}}
</ref><ref name="Medical News Today: Does the 20-20-20 rule prevent eye strain?">
{{Cite web |title=20-20-20 rule: How to prevent eye strain |url=https://www.medicalnewstoday.com/articles/321536 |last=Nall |first=Rachel |date=2020-05-30 |website=www.medicalnewstoday.com |language=en |access-date=2020-05-30}}
</ref> which may be the mechanism behind myopia progression.
 
It is arguable if near work induced myopia is the same mechanism as lens induced myopia.  Both are cases where you are doing work closer than [[20/20 eyesight]] finds comfortable, whether that acuity is "natural" (before your first pair of glasses) or with-correction.


==References==
==References==
Line 21: Line 39:


[[Category:Articles]]
[[Category:Articles]]
[[Category:Eye conditions]]

Revision as of 03:58, 6 September 2020

Lens-induced myopia is the generally accepted observation [1] (by researchers, if not the mainstream optometry industry - citation needed) that wearing corrective lenses seems to somehow cause myopia to worsen. Typically when someone wears distance vision glasses for close-up use.

The actual mechanism is still an area of active research, but the underlying cause appears to be axial elongation[2].

One of several hypotheses is that it is result of hyperopic defocus.[3]

It has been shown in studies that myopic defocus is protective against myopia progression.[4]

A core tenant of EM is that doing near work in lenses designed for distance work causes myopia progression. Even if hyperopic blur is not induced by the lenses, the accommodation system is being constantly stressed and this encourages eye axial elongation.[5][6]This is supported by the fact that both bifocals and multifocals, which allow the eye to use less accommodation to do near work, are protective against myopia progression [7][8][9][10]

Near Work Induced Myopia

This term is more heavily associated with Pseudomyopia. Many optometrists recommend the 20-20-20 rule to prevent eye strain,[11][12] which may be the mechanism behind myopia progression.

It is arguable if near work induced myopia is the same mechanism as lens induced myopia. Both are cases where you are doing work closer than 20/20 eyesight finds comfortable, whether that acuity is "natural" (before your first pair of glasses) or with-correction.

References

  1. Google Scholar list of Lens Induced Myopia studies
  2. McBrien NA, Adams DW (1997). "A longitudinal investigation of adult-onset and adult-progression of myopia in an occupational group. Refractive and biometric findings". Invest Ophthalmol Vis Sci. 38 (2): 321–33. PMID 9040464.Page Module:Citation/CS1/styles.css has no content.
  3. Zhou, Yun Yun; Chun, Rachel Ka Man; Wang, Jian Chao; Zuo, Bing; Li, King Kit; Lam, Thomas Chuen; Liu, Quan; To, Chi-Ho (2018-05-03). "Proteomic analysis of chick retina during early recovery from lens‑induced myopia". Molecular Medicine Reports. 18 (1): 59–66. doi:10.3892/mmr.2018.8954. ISSN 1791-2997.Page Module:Citation/CS1/styles.css has no content.
  4. Tarutta, Elena (2016). "Long -term effects of optical defocus on eye growth and refractogenesis" (PDF). Pomeranian J Life Sci. 62(1): 25–30.Page Module:Citation/CS1/styles.css has no content.
  5. Read SA, Collins MJ, Woodman EC, Cheong SH (2010). "Axial length changes during accommodation in myopes and emmetropes". Optom Vis Sci. 87 (9): 656–62. doi:10.1097/OPX.0b013e3181e87dd3. PMID 20562668.CS1 maint: multiple names: authors list (link)Page Module:Citation/CS1/styles.css has no content.
  6. Mallen EA, Kashyap P, Hampson KM (2006). "Transient Axial Length Change during the Accommodation Response in Young Adults". Invest Ophthalmol Vis Sci. 47 (3): 1251–4. doi:10.1167/iovs.05-1086. PMID 16505066.CS1 maint: multiple names: authors list (link)Page Module:Citation/CS1/styles.css has no content.
  7. Gw, Fulk; La, Cyert (Dec 1996). "Can Bifocals Slow Myopia Progression?". Journal of the American Optometric Association. 67(12): 749–754. PMID 9286316 – via PubMed.Page Module:Citation/CS1/styles.css has no content.
  8. Aller, Thomas (2002-12-13). "MYOPIA PROGRESSION WITH BIFOCAL SOFT CONTACT LENSES - A TWIN STUDY.: Poster # 142". Optometry and Vision Science. 79 (12): 179. ISSN 1538-9235.Page Module:Citation/CS1/styles.css has no content.
  9. Aller, Thomas; M, Liu; Cf, Wildsoet (Apr 2016). "Myopia Control With Bifocal Contact Lenses: A Randomized Clinical Trial". Optometry and Vision Science Supplement. 93(4): 344–52. PMID 26784710.Page Module:Citation/CS1/styles.css has no content.
  10. Goss, D A (Feb 1986). "Effect of Bifocal Lenses on the Rate of Childhood Myopia Progression". American journal of optometry and physiological optics. 63(2): 135–41. PMID 3953756.Page Module:Citation/CS1/styles.css has no content.
  11. "American Optometric Association 20-20-20 rule poster" (PDF). American Optometric Association. 2020-05-30. Retrieved 2020-05-30.Page Module:Citation/CS1/styles.css has no content.
  12. Nall, Rachel (2020-05-30). "20-20-20 rule: How to prevent eye strain". www.medicalnewstoday.com. Retrieved 2020-05-30.Page Module:Citation/CS1/styles.css has no content.