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प्रश्न
Shylesh is a school-going kid studying standard VIII. He is crazy about playing video games on mobile phones. After a couple of months, his eyes turned red and he felt severe pain in his eyes. His science teacher enquired about this and advised his parents to take him to an eye doctor.
- How does excessive usage of mobile phone affect our eyes?
- What are the values shown by the teacher?
उत्तर
Impact of excessive usage of mobile phones:
1.
- Cell phone radiation can damage the eyes and cause early cataracts.
- It can also lead to a cataract in the lens apart from affecting the retina, cornea, etc.
- It strains the eye muscles.
- It also caused temporary problems like dry and itchy eyes, blurry vision, pain in the eyes, etc.
2. The teacher has shown values of:
- Empathy
- Responsibility
- Personal care.
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संबंधित प्रश्न
Explain the mechanism of vision.
Name the part of the retina which is insensitive to light.
What is the principal function of the eye-lens?
The eyes of a person are focused (i) on a nearby object, and (ii) on a distant object, turn by turn. In which case:
the focal length of eye-lens will be the maximum?
Differentiate between:
Retina and Choroid.
Choose the Odd One Out:
Write an Explanation.
Power of accommodation
______ of the eye is comparable to the film of a camera.
Write the main functional activity of the following structure.
Ciliary body and suspensory ligament
Differentiate between members of the following pair with reference to what is asked in the bracket.
Aqueous humour and vitreous humour (location).