Xavier+B.

=**Effect of UV Rays on our Vision and Skin**= by Xavier B

**introduction**
Watching a marathon of House or looking up the word bootilitious on your digital dictionary is stuff we do every day. But does what we do every day benefit our body? Or hurt it? many people have strained there eyes because of exposure to video games and television as said by Nintendo and Sony. My movie will explain and show what could happen if you watch the TV too closely.

=Characters=

Character #1 -- Luke as L Character #2 -- Dylan C as D Character #3 -- Xavier as X Character #4-- Aron as camera man

=Short Description of Scenes=

Act1: locker room- Luke tells me to use sunscreen and i don't listen Act2: hallway- i get sunburn Act3: interview with nurse Act4:hallway- Luke narrates an animated flashback of how I got sunburn

=**Detailed Description of My Scenes**=

Introduction about the effect of UV Rays Xavier: "Most TVs give off UV rays Ultraviolet (UV) rays are part of electro-magnetic radiation. They are invisible rays lying beyond the violet end of the visible spectrum. Low intensity of UV rays are also emitted from fluorescent lamps, TV and computer monitors. The effects and damages to the eyes from the UV radiation are well documented.Since various ocular tissue layers absorb different wavelengths of the UV rays, they can respond quite differently. The cornea is particularly susceptible to the effects of UV-C and lesser extent of UV-B. UV-C given off by a welding arc can be absorbed by the cornea and symptoms of foreign body sensation, tearing and pain may appear between 30 minutes to 12 hours after exposure. Excessive exposure has been documented to cause corneal cells damage and can cause skin cancer".
 * Act 1**

I'll have animation about UV rays.where a girl forgets to put on sun screen and gets sunburn

Act 2
L:wow nice tan Xavier X:thanks was at the beach yesterday and tanned for about an hour L:did you use sunscreen X:no L:an hour with out sunscreen X:yes an hour without sunscreen L:do you want sunburn or something!
 * locker room**

Act 2
X:ouch! D:well Luke told you not to tan too long X: my skin is on fire! D:no you have sunburn the UV rays from the sun hurt you X:I should see the nurse
 * Hallway**

i will ask the nurse how UV rays effect our skin Questions: 1.where do UV rays come from? 2.What are the harmful effects of UV rays on human eyes? 3.Besides sunglasses, is there any UV-block lens for spectacle wearers?
 * interview with a nurse**

Act 3
X:sigh L:too bad for you X:how did this happen D: Let me tell you
 * Hallway**

shows a scene where an animated character is shown getting a tan and falls a sleep, then time passes as his skin changes color and gets reddish then he wakes up in pain
 * animated flash back**

X:so that is how it happened, from now on I wont tan too long Everyone: tan responsibly!
 * Hall way**

Xavier: "**How to protect yourself from UV rays?** 1.where sunscreen 2.where sunglasses

Most TVs give off UV rays Ultraviolet (UV) rays are part of electro-magnetic radiation. They are invisible rays lying beyond the violet end of the visible spectrum. Low intensity of UV rays are also emitted from fluorescent lamps, TV and computer monitors. As different intensity (wavelength) of UV has different effect on us, they are commonly categorized as UV-A, UV-B and UV-C. UV-C (wavelengths from 200nm - 290nm) is present above the earth's atmosphere and also given out from welding arcs. It also arises from sunlight's reflection from snow at high altitude. UV-B (wavelengths from 290nm - 320nm) and UV-A (wavelengths from 320nm - 390nm) are present in our living environment, from direct sunlight or reflection from snow, water, sands, glass windows, concrete walls etc. The effects and damages to the eyes from the UV radiation are well documented. Since various ocular tissue layers absorb different wavelengths of the UV rays, they can respond quite differently. The cornea is particularly susceptible to the effects of UV-C and lesser extent of UV-B. UV-C given off by a welding arc can be absorbed by the cornea and symptoms of foreign body sensation, tearing and pain may appear between 30 minutes to 12 hours after exposure. Excessive exposure has been documented to cause corneal cells damage. Corneal absorption of UV radiation decreases dramatically at wavelengths above 290nm. The portion UV-A and lesser extent of UV-B are transmitted through the cornea and aqueous, and nearly totally absorbed by the crystalline lens. Although painless, it can alter the lens nuclear proteins and lead to lens opacification (cataract). UV of long wavelengths transmitted through the lens will be received by the retina as have been implicated in macula degeneration and damaging retinal tissues. Pterygiums and Pingueculae have also been known closely associated to the exposure of UV rays. Normal human activities can not avoid exposure of eyes to the UV radiation. Although domestic fluorescent lamps, TV and monitors emit very small amount of UV radiation, it's prudent to protect the eyes from the cumulative effects of UV on long term exposure. They are various lens types, such as [|Hi-index],[| Photochromic (Transitions)],[| Polycarbonate lenses], which provide up to 99% of UV block without having the dark tint as with the sunglasses, allowing all day wear out and indoors.
 * Background info**
 * Are there different types of UV rays?**
 * What are the harmful effects of UV rays on human eyes?**
 * Besides sunglasses, is there any UV-block lens for spectacle wearers?**

UV  rays  remain very harmful for anyone who spends a large amount of time in the sun without proper protection. The most common effect of exposure to UV   rays  is sunburn. Sunburn is the damage caused to skin cells when they have absorbed too much energy from UV   rays. Sunburn causes blood to rush to the affected area as the body tries to cool the burn, and the damaged skin ultimately peels away. In addition to the burning pain on the skin, sunburn can ultimately cause [|skin cancer]. Sin cancer is often caused by prolonged exposure to UV   rays , but it can occur even when there is no evidence of sunburn. Dark skinned people are just as susceptible as those with fair skin to the damage caused by UV   rays. At first, eye damage caused by UV   rays  is usually pain or temporary blindness and [|blurred vision], but over time,  UV   rays  can ultimately lead to [|cataracts]. The UV  index measures the intensity of radiation caused by  UV   rays  and gives people an idea of how long they may remain in the sun before damage is possible. An index of 1-3 means the possibility for UV  damage is low, while and index of 8-10 means the possibility is high. The best way to combat UV   rays  is with bodily protection. Always wear protective [|sunglasses] and a hat to protect the eyes. A hat will also protect hair from UV  damage, as well as the skin on the face and neck.

Other Skin Damage
Other UV-related skin disorders include actinic keratoses and premature aging of the skin. Actinic keratoses are skin growths that occur on body areas exposed to the sun. The face, hands, forearms, and the "V" of the neck are especially susceptible to this type of lesion. Although premalignant, actinic keratoses are a risk factor for squamous cell carcinoma. Look for raised, reddish, rough-textured growths and seek prompt medical attention if you discover them. Chronic exposure to the sun also causes premature aging, which over time can make the skin become thick, wrinkled, and leathery. Since it occurs gradually, often manifesting itself many years after the majority of a person's sun exposure, premature aging is often regarded as an unavoidable, normal part of growing older. With proper protection from UV radiation, however, most premature aging of the skin can be avoided. 

Cataracts and Other Eye Damage
Cataracts are a form of eye damage in which a loss of transparency in the lens of the eye clouds vision. If left untreated, cataracts can lead to blindness. Research has shown that UV radiation increases the likelihood of certain cataracts. Although curable with modern eye surgery, cataracts diminish the eyesight of millions of Americans and cost billions of dollars in medical care each year. Other kinds of eye damage include pterygium (i.e., tissue growth that can block vision), skin cancer around the eyes, and degeneration of the macula (i.e., the part of the retina where visual perception is most acute). All of these problems can be lessened with proper eye protection from UV radiation. 

Immune Suppression
Scientists have found that overexposure to UV radiation may suppress proper functioning of the body's immune system and the skin's natural defenses. All people, regardless of skin color, might be vulnerable to effects including impaired response to immunizations, increased sensitivity to sunlight, and reactions to certain medications.

For more information on UV and health effects, see the [|Publications] section.

=**References**= ask.com medicine.com skin care.com