Showing posts with label eye. Show all posts
Showing posts with label eye. Show all posts

Friday, August 21, 2015

%99% of #contactlens users ignore hygiene rules, adopting behaviors that could lead them even to #blindness.% - http://clapway.com/2015/08/21/contact-lens-users-risking-blindness-101/

​In an effort to promote contact lens and eye health, Centers for Disease Control and Prevention (CDC) did a report based on a nationwide survey of 1,000 contact wearers. CDC discovered that 99 percent of them ignore hygiene rules adopting behaviors that could lead them even to blindness.


CONTACT LENS RISKS IN NUMBERS


Almost 85% of contact lens wearers say that they have showered with their lenses in while 61% have gone swimming wearing them. Health officials have always been suggesting that lenses should not come in contact with water and that even swim goggles are not a healthy solution.


Users’ cleaning habits are not better with 55% of them sometimes “topping off” their lens case with a more disinfecting solution. The official recommendation says that all contact lens users have to empty the case and then clean in before filling with fresh solution.


RELATED POST: SCIENTISTS DISCOVERED HOW OBESITY WORKS TO TREAT IT


Almost two-thirds of the surveyed sample had rinsed their contact lenses using tap water, which is a potentially risky move. As the report says, household tap water may be safe for drinking, but it is not sterile and the microorganisms contained in it can cause eye infections:


“Household tap water, although treated to be safe for drinking, is not sterile and contains microorganisms that can contaminate lens cases and contact lenses and cause eye infections,” the report says.


Over half said that they had slept overnight with their lenses in and more than 87% admitted they had fallen asleep in their contacts at some point, making napping the most common offense. While certain contact lenses are FDA approved for overnight wear, the CDC says that “sleeping in any type of lens can increase the risk of eye infections.”


Jennifer Cope, the lead author of the study, CDC medical epidemiologist said in a statement that healthy contact lens wear and care is extremely important and that many users do not have a clear idea about their proper use:


“Good vision contributes to overall well-being and independence for people of all ages, so it’s important not to cut corners on healthy contact lens wear and care. We are finding that many wearers are unclear about how to properly wear and care for contact lenses.”


THE RIGHT USE OF CONTACT LENS


The report of CDC comes with tips, to help reduce the risk of eye irritation or infections:


– Users should never sleep with their contact lenses in unless an eye care provider advises them to do so.


– All water must be kept away from contact lenses. Do not shower while wearing them and remove them before swimming or using a hot tub. Never wash or store your contact lenses in water.


– Contact lenses must be replaced as often as recommended by your eye care provider.


– Before putting their contact lenses in the case, users should clean it using fresh solution and never water.


– Store contact lens case upside down with the caps off after each use.


– The contact lens must be replaced, at leas, once every 3 months.


– Visit an eye care provider as often as recommended by your primary health care provider.


– If experiencing eye pain, blurred vision, redness or discomfort, remove the contact lenses immediately and call an eye care provider.



 


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Survey: Contact Lens Users Risking Blindness

Saturday, August 8, 2015

Eye Shape Determines Friend from Foe - http://clapway.com/2015/08/08/eye-shape-determines-friend-from-foe-101/

THE ANIMAL KINGDOM


Suffice to say, there are a great many animals in this world that are endlessly fascinating and new to science. We learn more about them everyday, just as we continue learning about ourselves in this harried adventure called life.

Which is why there is a whole field of study that brings science closer to the animals. Today, scientific research has revealed some interesting new findings regarding the animal kingdom.


Have you ever wondered what constraints influence an animal in order to make a friend or foe? Or at least wondered how differentiate the two groups more quickly?


SOME INTERESTING RESEARCH


In a study that was published just yesterday in the Science Advances, new research brings to the public a way of determining predator from prey, by way of an animal’s eye shape.

After all there is a noticeable difference between the eye of an crocodile and a sheep’s eye. Each with their own advantages and disadvantages.

Especially in the sheep’s case who can see what’s behind them but suffer from bad depth perception. To contrast, crocodiles can see very well underwater with the protective membrane.


INSIGHT INTO EYE SHAPE


According to an article in the New York Times, the study gathered its information from a pool of around 214 animals. In the study, the eye shape of the animals was shown to determine the habits and advantages of each animal.

Such findings include that the horizontal eye seen in horses, sheep, and cows may help to let more light in from the left to right side and see predators from different directions better. This allows the eye to stay parallel to the ground regardless of the head’s inclination.

Whereas the vertical slits we see in cats may help in surprising prey when pouncing. But that hypothesis loses legitimacy when considering tigers or lions (who have circular eye shapes).


But it may be due to the difference in height with regard to other predators with vertical eye shapes that may explain why some larger predators lack the vertical slit. One thing can be said about this study; as one scientist commented, it’s a wonder that no one noticed this earlier and studied the differences in eye shape vs. hunting or living habits.



 


REGARDLESS OF EYE SHAPE, BLUE LIGHT THERAPY WILL PLEASE




Eye Shape Determines Friend from Foe