Survivalismo para cortos de vista

JuanJoseRuiz dijo:

la miopia "maligna" de grandes dioptrias no tiene nada que ver ni con las distancias cortas ni con la luz . es un defecto hereditario.

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reconvertido dijo:

la miopia "maligna"
Miopia magna.

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JuanJoseRuiz dijo:

maligna porque suele conducir a desprendimiento de retina tambien..

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reconvertido dijo:

miopia maligna - Buscar con Google

www.google.com

Patológica en todo caso, ya que maligno se reserva para casos de tumoraciones.
De nada.

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mindugi dijo:

La luz de espectro completo te interesa durante el día (SOL). La franja del azul-UV causa estrés celular, aunque es necesario para producir hormonas y la dopamina ocular. La luz cálida (FUEGO) te interesa por la tarde-noche para equilibrar los niveles de melatonina. Recomiendo usar menos de 3000 K de temperatura de tonalidad para la luz ambiente, evitando LEDs por lo general.

A nivel óptico se sabe que con luz solar el ojo enfoca mejor objetos lejanos, yo asumo que se debe a que el sol emite un espectro completo en la región visible, con lo cual refleja más ondas, digo esto simplificandolo mucho.

En resumen: temperatura de tonalidad, lúmenes y gráfica espectral (esto último lo deduces sabiendo el tipo de tecnología de la bombilla)

Mirate vídeos del Dr. Wunsch para indagar más. También abrí un hilo relacionado:

El engaño de las farolas led en las ciudades: así perjudica tu salud la luz azulada | Destruye la 'hormona del sueño'

https://www.elconfidencial.com/tecnologia/2019-09-17/led-iluminacion-melatonina-contaminacion-luminica_2228027/ Los científicos alertan contra la luz blanca azulada que se está imponiendo en el alumbrado público. No solo son más eficientes energéticamente, también afectan a tu salud Por...

www.burbuja.info

Solo hay un inconveniente: el cristal filtra los ultravioletas beneficiosos. Suerte que apoyan el brazo con la ventanilla abierta

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mindugi dijo:

La luz de espectro completo te interesa durante el día (SOL). La franja del azul-UV causa estrés celular, aunque es necesario para producir hormonas y la dopamina ocular. La luz cálida (FUEGO) te interesa por la tarde-noche para equilibrar los niveles de melatonina. Recomiendo usar menos de 3000 K de temperatura de tonalidad para la luz ambiente, evitando LEDs por lo general.

A nivel óptico se sabe que con luz solar el ojo enfoca mejor objetos lejanos, yo asumo que se debe a que el sol emite un espectro completo en la región visible, con lo cual refleja más ondas, digo esto simplificandolo mucho.

En resumen: temperatura de tonalidad, lúmenes y gráfica espectral (esto último lo deduces sabiendo el tipo de tecnología de la bombilla)

Mirate vídeos del Dr. Wunsch para indagar más. También abrí un hilo relacionado:

El engaño de las farolas led en las ciudades: así perjudica tu salud la luz azulada | Destruye la 'hormona del sueño'

https://www.elconfidencial.com/tecnologia/2019-09-17/led-iluminacion-melatonina-contaminacion-luminica_2228027/ Los científicos alertan contra la luz blanca azulada que se está imponiendo en el alumbrado público. No solo son más eficientes energéticamente, también afectan a tu salud Por...

www.burbuja.info

Solo hay un inconveniente: el cristal filtra los ultravioletas beneficiosos. Suerte que apoyan el brazo con la ventanilla abierta

Hacer clic para expandir...

mindugi dijo:

La exposición a la luz solar en humanos suele implicar la atención visual en objetos lejanos. Sales al exterior para jugar al futbol no para dedicarte a meter hilos en alfileres. Correcto, un rico tiene grandes ventanales y grandes jardines con árboles centenarios para observar a cientos de metros de distancia, además de para aprovechar el bendito sol.

Ambos hábitos están ligados (exposición a luz solar y amplio campo visual). Aun así miraré los artículos, no creo que contradigan lo que he expuesto. Estoy seguro de que las dimensiones del campo visual influyen mucho, tanto como el sol.


No me has argumentado nada respecto al músculo ciliar ni la elongación axial. Échale un ojo a esto: EndMyopia Wiki

Hombre, yo también te puedo pegar unos cuantos artículos. Ya me gustaría haber leído todos.

Clinical Studies - EndMyopia Wiki

wiki.endmyopia.org

Lens induced myopia (LIM) & axial length change in humans

• "Significant changes in optical axial length occurred in human subjects after 60 minutes of monocular defocus." IOVS, 2010
• "The human eye is able to discern the sign of defocus within minutes after exposure to blur and make changes in its axial length in a direction to reduce the amount of retinal blur", Scientific Reports, 2020
• "During relatively short periods of accommodative stimulation, axial length increases in ... young adults", IOVS, 2006
• "The eye undergoes a significant axial elongation associated with a brief period of accommodation...", OVS, 2010
• "It is therefore clear that preventive approaches need to concentrate on measures that prevent or reduce axial elongation, since this would result in a reduction in both the need for refractive correction and the long-term pathological outcomes", Acad Med Singapore, 2004
• "Refractive correction of myopia will lead to accelerated progression", OPO, 2007
• "Continuous correction of myopia results in a linear progression that increases myopia...", GACEO, 2015
• "...A reduction in the axial length of the adult eye serves as an emmetropizing mechanism...", AJOPO, 1987
• "...This study found that small but significant bi-directional changes in SFCT (Sub-Foveal Choroidal Thickening) were caused by retinal defocus in healthy presbyopic subjects aged 50 to 67 years of age....", IOVS, 2018
• "Small but significant changes in SFCT (Sub-Foveal Choroidal Thickening) (5-8%) were caused by retinal defocus. .", OPO, 2015

Lens induced myopia (LIM) & axial length change in animals

• "Extrapolation of these (animal) findings to humans predicts that natural emmetropization (normal eye development) will be inhibited...by early intervention with prescription lenses..." OPO, 2007
• "It has been suggested that environmental factors such as extensive near work act as triggers of myopia....The expression of AL (Axial Length) genes activated by environmental factors leads to the elongation of AL (Axial Length)." Ophthalmologica, 2011
• "Hyperopic defocus accelerated vitreous chamber elongation (Axial Length) and produced myopic shifts in refractive error...***owing lens removal, the...monkeys recovered from the induced myopia..." IOVS, 2013
• "We demonstrated that eyes of young animals of various species (chick, tree shrew, marmoset, and rhesus macaque) can shorten in the axial dimension in response to myopic defocus." IOVS, 2013
• "The chick eye is able to change its refractive state by as much as 7 D by pushing the retina forward or pulling it back (when stimulated by lense use)..." VR, 1995
• "Chicks' eyes rapidly compensate for defocus imposed by spectacle lenses...The complex etiology (cause) of human myopia may reflect these temporal properties." IOVS, 2009
• "If the effective focal length of a growing eye is modified by spectacle lenses, the eye compensates by altering its growth, thereby keeping images in focus..." VR, 2002
• "In a matter of minutes, the eye can know which way to grow..." IOVS, 2005
• "...spectacle lenses could predictably alter the growth of...eyes resulting in ... refractive changes in both the hyperopic and myopic directions." VR, 1999

Nearwork-Induced tras*ient Myopia (NITM) & Nearwork Causing Permanent Myopia (PM)

• "Today there no longer seems to be any question that nearwork is a causal factor for myopia. " The Lancet, 2000
• "People who do an excessive amount of near-vision work may experience a false or "pseudo" myopia...Clear distance vision usually returns after resting the eyes. However, constant visual stress may lead to a permanent reduction in distance vision over time. " American Optometric Association
• "Near work which is a primary, environmentally based factor in the development and progression of permanent myopia (PM) may take effect via near work-induced tras*ient myopia (NITM)." ZYJZZ, 2012
• "...based on recent converging evidence from clinical, laboratory and modelling studies, a five-fold argument will be advanced for a possible link between PM (Permanent Myopia) and NITM (Nearwork-Induced tras*ient Myopia)." OPO, 2008
• "Continuous reading, close distances of reading, television viewing... and use of fluorescent desk light were significantly associated with myopia... which indicates that visual behaviors and environments may be important factors mediating the effects of near work on myopia.." PLoS, 2015
• "The current study provides novel evidence, based on objective data, to support the association between the intensity of near work, light intensity and myopia..." BrJO, 2020
• "Near work such as close reading distance (< 30 cm) and continuous reading (> 30 minutes) independently increased the odds of having myopia in this sample of children." IOVS, 2008
• "The purpose of the present study was to...investigate the possible relation between NITM (Nearwork-Induced tras*ient Myopia) and PM (Permanent Myopia); and to determine the possible associations with NITM " IOVS, 2008

Reversing Myopia
Outdoor time & distance vision

• "It is now well established that spending more time outdoors during childhood lowers the risk of developing myopia..." BrJO, 2020
• "Outdoor activity reduces the prevalence of myopia in children." Opthamology, 2008
• "The most immediate path to myopia prevention in schools is to increase the amount of time that children spend outdoors within school hours" PRES, 2018
• "..VL (Violet Light) is one of the important outdoor environmental factors for myopia control...VL exposure can be a preventive strategy against myopia progression" EBioMedecine, 2017

Using reduced or no lenses (myopic defocus)

• "The human eye is capable of responding to the presence of blur by changing its axial length, so that the retina moves towards the defocused image plane (using reduced lenses)...These findings provide evidence that the human eye is able to detect and respond to the presence (using reduced lenses)... of blur within minutes." Scientific Reports, 2020

• "Our findings suggest that myopic defocus (using reduced lenses) slows the progression of myopia in already myopic children, supporting previous findings from animal studies..." IOVS, 2004
• "Compared with SV lenses (Normal Glasses), myopia progression was found to be retarded by PALs (Bifocals / Reduced Lenses) to some extent in Chinese children" OPO, 2008
• "Results of this study suggest that such children, if myopic, may have an additional benefit of slowed progression of myopia." IOVS, 2004
• "Eyes of chick, tree shrew, marmoset, and rhesus macaque can shorten axially when presented with myopic defocus...Implications for human myopia control are significant." IOVS, 2013
• "The results suggest that imposed peripheral myopic defocus (reduced lense use) may be able to be used to control on–axis axial elongation (myopia progression)..." GACEO, 2017

Active Focus (accomodative training or accomodative facility training)

• "Training of the accommodative system (active focus)...resulted in improved dynamics...This is consistent with earlier reports in the literature of improvements..." OVS, 2009
• "This study evaluates the effect of accommodative facility training (active focus) in myopes and emmetropes (normal sighted)....The results showed that training (active focus) improved the facility rate (results) in both groups..." VR, 2010
• "These results suggest that accommodative facility training (active focus) is an efficient method built on loss of symptoms among children..." DO, 1999
• "The result of this study indicates that accommodative facility training (active focus) has a real effect on the amplitude of relative accommodation in patients with impaired relative accommodation..." OPO, 2001
• "This experiment shows the effectiveness of automated accommodative training (active focus) in reducing asthenopia (eye strain) and improving accommodative facility." AmJOPO, 1987

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Profesor.Poopsnagle dijo:

Lo mejor es la extinción.

Nos queremos que genes de la miopía, obesidad, o la calvicie sobrevivan.

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DaniAE188 dijo:

Falso, suele ser genético.

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