Health and Medical News and Resources

General interest items edited by Janice Flahiff

[News article] BBC – Future – Does wearing glasses weaken your eyesight?

BBC – Future – Does wearing glasses weaken your eyesight?.

From the May 2014 article

…A study from Nigeria published last year found 64% of students believed that wearing glasses can damage eyes. Research in the Indian state of Karnataka put the figure at 30%, and in Pakistan 69% of people feel the same way. In Brazil, even medical staff believed that your eyes would gradually get weaker as a consequence of wearing glasses. Is there any evidence to suggest they are right?

There are, of course, two very different reasons why people wear glasses – short-sightedness, or myopia, where things in the distance are blurry; and long-sightedness, or hyperopia, where you can’t focus on things close up. Long-sightedness is often age-related: many people begin noticing in their 40-50s that it’s difficult to read in low lighting. As we age the lenses in our eyes gradually stiffen, making it harder to adjust to different distances. When people get to the stage where their arms aren’t long enough to hold a book or menu far enough away to focus on the text, they opt for reading glasses.

What’s surprising is how few trials have been conducted on the prolonged effect of wearing glasses. And from what we know there’s no persuasive evidence that wearing reading glasses affects your eyesight….

July 2, 2014 Posted by | Medical and Health Research News | , , , , , | Leave a comment

Kids Literally See Different Than Adults


Visual and sensory information is not blended in children’s brains, study finds

Children may actually see the world differently than adults, researchers have found. The findings are published in the Sept. 13 edition of the Proceedings of the National Academy of Sciences.

Unlike adults, children younger than 12 don’t combine different sensory information in order to understand their surroundings, the study authors say.

In two new studies, U.K. researchers found that not only do children separate different senses such as vision and sound, their brain also separates input it receives when looking at a scene with one eye compared to with both eyes.

September 16, 2010 Posted by | Health News Items | , | Leave a comment

   

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