The inflammation of cornea, called 'Snow Blindness', is caused by

Options

A. High doses of UV-A
B. High doses of UV-B
C. Low doses of UV-A
D. Low doses of UV-B

Answer

**Step-by-Step Solution:**

1. **Understanding Snow Blindness**: Snow blindness is a condition characterized by inflammation of the cornea, which is the clear front surface of the eye. It is often associated with exposure to bright sunlight, particularly when reflected off snow or ice.

2. **Identifying the Cause**: The primary cause of snow blindness is exposure to ultraviolet (UV) radiation. There are different types of UV radiation, mainly UVA and UVB.

3. **Differentiating Between UVA and UVB**:
- **UVA Radiation**: This type of UV radiation has a longer wavelength and penetrates the skin more deeply. It is less associated with immediate harmful effects on the eyes.
- **UVB Radiation**: This type has a shorter wavelength and is primarily absorbed by the outer layers of the skin and the cornea of the eye. It is known to cause more direct damage.

4. **Effects of UVB Radiation**: High doses of UVB radiation can lead to various harmful effects, including:
- Damage to DNA, which can lead to mutations.
- Inflammation of the cornea, which is specifically what causes snow blindness.
- Increased risk of skin cancers and skin aging.

5. **Conclusion**: Based on the understanding that snow blindness is caused by inflammation of the cornea due to UV radiation, and specifically high doses of UVB radiation, we conclude that the correct answer is high doses of UVB.

**Final Answer**: The inflammation of the cornea, called 'Snow Blindness', is caused by high doses of UVB radiation.

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