5m vision test table gia re 24h

• Khoảng cách đo 5m.
  
• Đơn giản, dễ sử dụng.
  
• Độ tin cậy cao.
  
• Kiểm tra mắt cho cả gia đình.
  
• Chất liệu : Giấy cao cấp
  

Currently the situation of children from urban to rural areas is increasing myopia and smaller age due to academic pressure, watch TV much, playing Smartphone ...
Sometimes we also want to let the children go to the hospital to measure the eye but is too laborious, while the private clinics or the greenhouse effect, it did not really want to have some basis so discredited - What type examination disease also ...
The solution is to check the eyesight for the baby at home with optometry Table C, if detected abnormal, consult the specialist at the prestigious hospital.
Although there have been many methods of measurement with modern machinery but optometry Table C 5m distance is still testing method is simple and effective.
Optometry basic ways:
- Table of vision in that light hanging on the wall at eye level.
- Give your baby away from the table stand or sit 5 meters eyesight, wait for a while to get used to the eye in the room light before measuring.
- Explain to your child how to measure eye: an open circle in any direction pointing in that direction.
- Test each eye separately, covering the other eye to eye test, take care not to press on the eyeball.
- Use dark colored sticks only every word, the first rod 1cm spacing, each row from top to bottom, from the fifth row = 0.6 or less just read the letter 2/3.
- Recording at the lowest line that baby was read correctly 4 consecutive letters. Example: She was right of every 4-digit V = 0.8 on the eye chart eye vision is 8/10.

Row	Eye sight
V = 0,1	1/10
V = 0,2	2/10
V = 0,3	3/10
V = 0,4	4/10
V = 0,5	5/10
V = 0,6	6/10
V = 0,7	7/10
V = 0,8	8/10
V = 0,9	9/10
V = 1,0	10/10
V = 1,5	15/10
V = 2,0	20/10

Note: After the measurement is complete you should roll it away baby avoid memorizing alphabets offline!

• Brand None
  
• SKU NO007HBAA21B4ZVNAMZ-3467582
  
• Model Bang kiem tra thi luc chu C ISO-8023
  
• Warranty Type Invoice
  
• Warranty Period 12 Months
  

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