LIGHT-POST -11

CLASS 8 CHAPTER 16
Light
Day 11


Dear Learners,

In the previous blog, we have learned about Persistence of Eyes and Defects of Eye. Let me help you to recall few important points

1. The ability of the eye to retain the image of the object for 1/16th of a second after we have stopped looking at the object is called Persistence of Eye.
2. The abnormalities in the normal vision of the eye are called defects of vision or defects of eyes.
3. The most commonly observed defects of vision are myopia and hypermetropia. 

Today, we will be learning about care of eyes .

Happy Learning!😊

At the end of it, you will be able to:
1. follow ways  to maintain healthy eyes.
2. tell the role of nutrition to maintain good health of eye.

Care of Eyes

The sense of sight is the most important of our five senses. 

WAYS TO TAKE CARE OF OUR EYES ARE -
(i) Protect eyes from extreme sunlight and glare of bright lights.

(ii) Protect eyes from the dust .

(iii) While reading, keep the reading material at a distance of about 25-30 cm from the eyes.

(iv) Raise your eyes from time to time while reading, watching TV etc.

(v) Do not watch television for long hours, particularly in a completely dark room.

(vi) Do not read in dim light, or in moving bus or while lying down. This puts strain on the eyes.

(vii) Do not rub your eyes.

(viii) Wash your eyes by splashing clean cold water whenever you feel your eyes are strained or tired.

(ix) Protect your eyes from any damage/injury while playing running.

(x) If you  feel strain in your eyes, get  your eyesight checked from the eye specialist. Use spectacles, if required.

https://www.youtube.com/watch?v=ETuAM-n3ZWE

            NUTRITIOUS FOOD  FOR EYES

Food items such as spinach, milk, butter, pumpkin, tomato, carrot, cabbage, and mango are rich sources of vitamin A. Vitamin A is good for our eyes.
https://www.youtube.com/watch?v=8DW_OADlLGY

Deficiency of vitamin A leads to night blindness. A person suffering form night blindness can see during day but cannot see at night or dim light.

What is night blindness?    https://www.youtube.com/watch?v=nnCrnWOiKG4

Home Assignment
1. Read the blog carefully.
2. Read Page no 259-260 of your reader.

 DO THE FOLLOWING QUESTIONS IN YOUR NOTEBOOK

 Q16. List 5 ways of taking care of your eyes.

 ans: WAYS TO TAKE CARE OF OUR EYES ARE -
(i) Protect eyes from extreme sunlight and glare of bright lights.

(ii) Protect eyes from the dust .

(iii) While reading, keep the reading material at a distance of about 25-30 cm from the eyes.
iv) Raise your eyes from time to time while reading, watching TV etc.

(v) Do not watch television for long hours, particularly in a completely dark room

 Q17. Name a few foods that help to keep your eyes healthy.
ans: Food items such as spinach, milk, butter, pumpkin, tomato, carrot, cabbage, and mango are rich sources of vitamin A. Vitamin A is good for our eyes.





Comments

  1. Abhay Singh UpmanyuMay 9, 2020 at 8:10 AM

    Good morning ma'am I am ABHAY SINGH UPMANYU of 8D

    ReplyDelete
  2. Daksh martinMay 9, 2020 at 8:12 AM

    Good morning mam im Daksh martin 8th D

    ReplyDelete
  3. Achyut TripathiMay 9, 2020 at 8:27 AM

    Good morning Ma'am I am Achyut Tripathi

    ReplyDelete
  4. PrabhgunMay 9, 2020 at 8:44 AM

    Good morning Ma'am I am Prabhgun























































    ReplyDelete
  5. Aditya JaisonMay 9, 2020 at 8:50 AM

    Good morning ma'am...
    I am AARUSH JUDE of class 8D

    ReplyDelete
  6. Arpit Jonathan PillayMay 9, 2020 at 8:52 AM

    Good morning Maam I am ARPIT JONATHAN PILLAY

    ReplyDelete
  7. Ashaan Anurag lallMay 9, 2020 at 9:04 AM

    Good morning mam I am Ashaan Anurag lall

    ReplyDelete
  8. Riddhesh S. LodhiMay 9, 2020 at 9:06 AM

    Good morning ma'am I am Riddhesh S. Lodhi of class 8th D

    ReplyDelete
  9. Gurdev SinghMay 9, 2020 at 9:10 AM

    Good morning ma'am, I am Gurdev Singh Class 8D

    ReplyDelete
  10. Ronald Jo JosephMay 9, 2020 at 9:12 AM

    Good morning ma'am.I am Ronald Jo Joseph

    ReplyDelete
  11. AnonymousMay 9, 2020 at 9:19 AM

    Good morning mam I am kartik of class 8-D

    ReplyDelete
  12. UnknownMay 9, 2020 at 9:24 AM

    Good morning maam I am Shaurya khatri

    ReplyDelete
  13. Varun NegiMay 9, 2020 at 9:28 AM

    Good morning ma'am I am varun Negi

    ReplyDelete
  14. Ojas punjMay 9, 2020 at 9:36 AM

    Good morning ma'am. I'm Ojas Punj

    ReplyDelete
  15. Mohit KumarMay 9, 2020 at 9:38 AM

    Good morning mam. I am Mohit Kumar.

    ReplyDelete
  16. Janav jainMay 9, 2020 at 9:40 AM

    Good morning Ma’am
    JanavJain

    ReplyDelete
  17. Aron haokipMay 9, 2020 at 9:42 AM

    Good morning Ma'am iam Aron haokip

    ReplyDelete
  18. JoelMay 9, 2020 at 9:42 AM

    Good morning ma'am I am Tumeti Sushaun Joel of class 8D

    ReplyDelete
  19. Akash DcostaMay 9, 2020 at 9:43 AM

    Good morning mam I am Akash Dcosta 8D

    ReplyDelete
  20. Utkrisht suraliyaMay 9, 2020 at 9:45 AM

    Gm mam utkrisht Suraliya 8d

    ReplyDelete
  21. Shaun DsouzaMay 9, 2020 at 9:47 AM

    Good morning, my name is Shaun Dsouza

    ReplyDelete
  22. AnonymousMay 9, 2020 at 9:47 AM

    Good morning mam my name is Isaac Visscher class 8-D

    ReplyDelete
  23. Vedant kumarMay 9, 2020 at 9:51 AM

    Good morning ma'am I am Vedant Kumar 8d

    ReplyDelete
  24. Jacob TombingMay 9, 2020 at 9:54 AM

    Good morning ma'am

    ReplyDelete
  25. Maanvik SoodMay 9, 2020 at 9:55 AM

    Good Morning Ma'am; This Is Maanvik Sood

    ReplyDelete
  26. ROHANMay 9, 2020 at 10:12 AM

    Good morning ma'am I Rohan Bisht

    ReplyDelete
  27. unknownMay 9, 2020 at 10:15 AM

    I am Hitesh Vijay Nitnaware

    ReplyDelete
  28. Daksh martinMay 9, 2020 at 10:19 AM

    Good morning maam daksh martin here

    ReplyDelete
  29. Jacob TombingMay 9, 2020 at 10:43 AM

    Ma'am what type of lens is given to a person suffering from both myopia and hypermetropia ?

    ReplyDelete
    Replies
    1. PreetikaMay 9, 2020 at 11:28 AM

      a bifocal lens is used ,the upper part has a concave lens and lower part has convex lens

      Delete
    2. Jacob TombingMay 9, 2020 at 12:34 PM

      ok,thank you ma'am

      Delete
  30. UnknownMay 9, 2020 at 11:00 AM

    Good morning ma'am I am Alan Richard

    ReplyDelete
  31. Maneet GunawatMay 9, 2020 at 1:07 PM

    Good morning mam I am Maneet Gunawat

    ReplyDelete

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