[✔️] July 9, 2023- Global Warming News Digest | Eyesight and temperature increase,

Sun Jul 9 09:01:08 EDT 2023

/*July*//*9, 2023*/

/[ If your eyes hurt, it's nice to have someone read articles aloud.  an 
important service for this topic ]/
*Can Global Warming Really Screw up our Eyeballs?*
Paul Beckwith
Jul 7, 2023
As an eyeglass wearer for most of my life, I am very attuned to human 
vision issues.

I also challenge people I run across to think of something happening 
that is not linked or connected in any way to climate change, and then I 
figure out a way in which it is connected to climate change. That 
applies here:)

A fascinating new peer reviewed scientific study looks at data from 1.7 
million older Americans in a survey taken over 6 years between 2012 and 
2017.
Each person indicated whether they were functionally blind or had vision 
problems that could not be corrected with prescription glasses, 
contacts, corrective surgery, etc. The mean annual temperature in each 
of the counties in the USA was determined allowing for mean temperature 
data to be obtained for each person answering the survey, whether it be 
by mail, online, or telephone.

The results of the study were extremely surprising.
https://www.youtube.com/watch?v=ldvvANdlcxY

- -

/[ research article ]/
*Association Between Area Temperature and Severe Vision Impairment in a 
Nationally Representative Sample of Older Americans*
*ABSTRACT*
Purpose
Several small studies have associated exposure to elevated average 
temperature with specific vision problems. However, no large-scale 
studies have examined the relationship between vision impairment and 
average area temperature in the general population. We conducted a 
cross-sectional analysis of a large nationally representative sample of 
older adults to further explore this relationship.

*Methods*
Secondary analysis of the American Community Survey (ACS). The survey 
was conducted through mail, telephone and in-person interviews. Data 
from six consecutive years of the cross-sectional survey were analysed 
(2012–2017). The subsample analysed included community-dwelling and 
institutionalized older adults aged 65 and older in the coterminous US 
who lived in the same state in which they were born (n = 1,707,333). The 
question on severe vision impairment was “Is this person blind or does 
he/she have serious difficulty seeing even when wearing glasses?”. 
Average annual temperature data from the National Oceanic and 
Atmospheric Administration was combined into a 100-year average and 
mapped to corresponding US Census Bureau’s public use microdata areas 
from the ACS.

*Results*
Higher average temperature is consistently associated with increased 
odds of severe vision impairment across all cohorts (i.e. age, sex, 
race, income, and educational attainment cohorts) with the exception of 
Hispanic older adults. Compared to those who lived in counties with 
average temperature of < 50 °F (< 10 °C) , the odds of severe vision 
impairment were 44% higher in counties with average temperature of 60 °F 
(15.5 °C) or above (OR 1.44; 95% CI 1.42–1.46).

*Conclusion*
If the association is found to be causal, the predicted rise in global 
temperatures could impact the number of older Americans affected by 
severe vision impairment and the associated health and economic burden.

https://www.tandfonline.com/doi/full/10.1080/09286586.2023.2221727
https://pubmed.ncbi.nlm.nih.gov/37338863/

- -

/[ from Ophthalmology News -- correlation not yet specific causes ]/
*Study: Higher average temperature linked to serious vision impairment 
among older Americans*
Jul 5, 2023
David Hutton
In a study of 1.7 million older Americans by a team of researchers from 
the University of Toronto, those living in counties with an average 
temperature of 60°F or above had an increased chance of suffering 
serious vision impairment than those in cooler counties.
- -
*Causes remain a mystery*
The researchers noted the observed link between average temperature and 
severe vision impairment may be strong, but the mechanism behind this 
relationship remains a mystery.1

On top of that, the researchers hypothesize several potential causes for 
the observed relationship, including increased ultraviolet light 
exposure, air pollution, infections, and folic acid degradation with 
increased temperature. However, the design of this study does not 
provide definitive insight into how temperature affects vision, the 
university noted.

According to the news release, the study was based on 6 consecutive 
waves of the American Community Survey (2012 to 2017) which surveyed a 
nationally representative sample of American respondents aged 65 and 
older annually. The sample analyzed included 1.7 million 
community-dwelling and institutionalized older adults in the coterminous 
US who lived in the same state in which they were born.

Moreover, according to researchers, the question on vision impairment 
was “Is this person blind or does he/she have serious difficulty seeing 
even when wearing glasses?” The news release noted the average 
temperature data was obtained from the National Oceanic and Atmospheric 
Administration and combined with data from the American Community Survey.

Esme Fuller-Thomson pointed out in the release the research team was 
surprised to discover this strong association between temperature and 
vision impairment.

“But this novel finding introduces more questions than it answers, 
including what the connection between average county temperature and 
vision impairment is,” Fuller-Thompson concluded in the news release. 
“Moving forward, we plan to investigate whether county temperature is 
also associated with other disabilities among older adults such as 
hearing problems and limitations in daily activities.”...

https://www.ophthalmologytimes.com/view/study-higher-average-temperature-linked-to-serious-vision-impairment-among-older-americans

- -

/[ yes there is a website called OBN Ophthalmology Breaking News  ]/
*Rising Temperatures Linked to Serious Vision Impairment in Older Adults*
July 03, 2023
A study on 1.7 million older people residing in various American 
counties has warned that individuals aged 65 and above living in warmer 
regions are more prone to experiencing severe vision impairment compared 
to those in cooler regions.

According to the study, individuals residing in areas with an average 
temperature ranging from 10-12 degrees Celsius faced a 14% higher 
likelihood of severe vision impairment, while those in areas with an 
average temperature between 12 and 15.55 degrees Celsius faced a 24% 
higher likelihood. Furthermore, individuals living in counties with an 
average temperature of 15.5 degrees Celsius or higher had a 44% higher 
likelihood of severe vision impairment, as compared to those living in 
areas with an average temperature of less than 10 degrees Celsius.

Professor Esme Fuller-Thomson, the study's first author from the 
University of Toronto, expressed concern about the association between 
vision impairment and average county temperature. She highlighted the 
importance of future research in determining causality and monitoring 
the prevalence of vision impairment among older adults as global 
temperatures rise due to climate change.

The study, published in the journal Ophthalmic Epidemiology, revealed a 
strong relationship between average temperature and severe vision 
impairment, regardless of participants' age, sex, income, or education. 
The association between higher county temperature and serious vision 
impairment was particularly pronounced among individuals aged 65 to 79 
compared to those aged 80 or older, as well as among males compared to 
females. However, the underlying mechanism behind this link between 
average temperature and severe vision impairment remains unknown.

ZhiDi Deng, a pharmacy graduate from the University of Toronto and 
co-author of the study, highlighted the significance of addressing 
vision impairments and their consequences. Severe vision impairment can 
increase the risk of falls, fractures, and negatively impact the quality 
of life for older adults. Additionally, it imposes significant costs on 
the US economy each year. Therefore, the link between temperature and 
vision impairment raises concerns.

The research team analyzed data from 1.7 million older adults residing 
in communities or institutions and compared their vision health with 
average temperature data obtained from the National Oceanic and 
Atmospheric Administration.
https://ophthalmologybreakingnews.com/rising-temperatures-linked-to-serious-vision-impairment-in-older-adults

/[ The news archive - looking back -- if only Clinton had resigned the 
presidency - would we have a different world?  ]/
/*July 9, 1992*/
July 9, 1992: Democratic presidential candidate Bill Clinton selects 
Tennessee Senator Al Gore as his running mate.

http://www.nytimes.com/1992/07/10/us/1992-campaign-democrats-clinton-selects-senator-gore-tennessee-running-mate.html

http://www.c-span.org/video/?26971-1/clinton-vice-presidential-announcement

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