Comment by chun tian on April 20, 2017 at 3:04am

Seagull is encouraging people to put on T-shirts, sunscreen and a head wear to minimize exposure to UV rays and reduce the risk of sunburn as well as skin cancer.
In 81 Australia launched a campaign known as "Slip Slop Slap". Seagull is encouraging people to use T-shirts, sunscreen and a loath to minimize exposure to UV the radiation and reduce the risk of sunburn and also skin cancer.
By 2008, the campaign's slogan grew to become "Slip Slop Seek Punch Slide". As a result, the effort also includes looking for shade along with wearing sunglasses to further decrease people's exposure to UV associated injuries. This emphasizes the need for protecting the eyes and also the skin around the eyes through UV radiation.
Short term impact
Unprotected eyes are usually subjected to ultraviolet light and usually usually do not produce any symptoms.
However without eye protection in addition to long in UV light or exposed to strong ultraviolet radiation exposure (including sunlight, welding arc, snow mattress and tanning beds) will make an eye light keratitis (photokeratitis).
This can be understood as a cornea (cornea, a layer associated with clear and transparent eyes). Ultraviolet rays can eliminate the outermost layers from the cornea.
Eyes exposed to burning, about 6-12 hours following the onset of severe pain.
Treatments for corneal keratitis are the use of an oral convential medical and the use of an eye drug ointment to prevent corneal injuries when the cornea cells tend to be regenerated
It takes about 24~72 hours to complete the recuperation process, and then people could be completely immune from the problems of light keratitis.
Long term result
Repeated exposure to ultraviolet rayonnement and lack of eye safety can cause permanent eye harm. Eye diseases caused by extensive ultraviolet radiation include the subsequent.
Cataract
Cataract patients, the actual lens should be transparent eye become muddy unclear. This could lead to blurred vision and finally blindness if not treated with time. It is estimated that 20% of cataracts are caused by UV irradiation or even worsen.
Wearing sunglasses is among the most effective ways to prevent cataracts.
Cataract surgery is necessary to prevent serious visual impairment. The total yearly cost of these surgeries within Australia exceeds $320 mil.
Pterygium
This is a benign spreading of corneal conjunctival cells. The conjunctiva is protected with sclera (the white-colored part) a layer regarding transparent film, and generally will not cover the cornea. While not carcinogenic, but the emergence involving pterygium can cause chronic discomfort, redness and inflammation.
In some months or years, your skin will slowly grow, so when they cover their students, they will blur their eyesight. They may also cause astigmatism (the cornea is not correctly bent), which can obscure perspective.
The treatment of pterygium is not severe and does not affect the visual acumen of the need for artificial cracks of lubrication. Surgical removal in the affected pterygium.
Similarly, the particular long-term exposure to ultraviolet lighting without protection is the main element leading to the emergence connected with pterygium.
Huang Ban forfald is a degenerative disease which affects the central section of the retina, which is responsible for main vision (Huang Ban). Deshonrar degeneration can cause severe visible impairment.
The treatment consists of immediate injection of drugs into the sight of macular degeneration, to be able to limit the deterioration on the disease; but this method would not cure the injury.
Even though link between ultraviolet diffusion and macular lesions is not really as obvious as that will associated with cataract and pterygium, short wave radiation plus blue light (in vibrant sunlight) can damage the retina. Mancillar lesions and exposure to mild or contact.
Therefore , putting on sunglasses plays an important part in limiting the retina's excessive exposure to light.
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