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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.
APPEARS IN
संबंधित प्रश्न
Distinguish between: blind spot and yellow spot
Explain, why a normal eye is not able to see distinctly the objects placed closer than 25 cm, without putting any strain on the eye.
Name the part of the eye:
on which the image is formed.
List, in order, the parts of the eye through which light passes to reach the retina.
Which part brings the image into sharp focus on the retina? How does it do this?
The figure below compares a part of our eye with a part of a photographic camera.
Name the corresponding parts of the eye the camera shown here that are comparable in function.
For the normal human eye, the near point is at ___________ cm.
The transparent membrane that keeps the eye moist is ______.
Match the following:
| Column - I | Column - II |
| 1. Retina | a. Path way of light |
| 2. Pupil | b. Far point comes closer |
| 3. Ciliary muscles | c. near point moves away |
| 4. Myopia | d. Screen of the eye |
| 5. Hypermetropia | e. Power of accommodation |
The thin, transparent extension of sclerotic layer found in front of the lens is ______.
