Question

Snow Blindness is caused due to
(a)Global warming
(b)Ozone depletion
(c)Greenhouse effect
(d)Biomagnification

Answer 1

Hint: This is the condition that increases the amount of ultraviolet radiation to reach Earth's surface, to cause skin cancer, eye cataracts, and damage to the genetic and immune system. This is mainly observed at the poles.

Complete answer:
Snow Blindness is caused due to Ozone depletion. Snow blindness is also known as arc eye or photokeratitis. In the term photokeratitis, the word“photo” means “light” and keratitis is an inflammation of the cornea. It is a painful eye condition that is caused by overexposure to ultraviolet (UV) light. When too much UV light hits the transparent outer layer cornea of our eyes, it essentially causes sunburn to the cornea.

Additional Information: -The outermost layer of the cornea known as the epithelium has thousands of nerve endings, making our cornea very sensitive to any damage or pain.
-When too much UV light hits our cornea, this sensitive outer layer becomes inflamed and irritated, causing a feeling of burning or itching.
-The symptoms of snow blindness include pain in your eyes, headache, blurred vision, or temporary loss of vision, feeling that something is in your eye and you can’t remove it, swollen, red eyelids with watery eyes, and the patient sees exaggerated glare around indoor lights.
-Snow blindness usually goes away on its own once the corneas recover.
-Resting eyes by keeping away from UV light is the best way to encourage healing.using a cold compress to soothe burning or eye pain
-keeping your corneas moisturized with artificial tears to encourage healing.
So, the correct answer is, 'ozone depletion'.

Note: -The UV rays reflected off sand, snow, and water can burn your cornea and cause photokeratitis.
-Symptoms tend to resolve on their own gradually in a day or two.
-Snow blindness is mostly preventable by wearing sunglasses.
-using pain relievers, such as aspirin or acetaminophen, is useful for pain relief.