Tag: Visual perception

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News on Health & Science

Ways to Improve Your Eyesight

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Yahoo Health has collected some tips you can use to sharpen your vision. Here are some of them:
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1. Eat Right
Vitamins A, C, E, and minerals like copper and zinc are essential to eyesight. Antioxidants protect your macula from sun damage, and foods rich in sulfur, cysteine, and lecithin help protect the lens of your eye from cataract formation. The omega-3 fat DHA provides structural support to cell membranes that boost eye health.

2. Limit Environmental Toxins
External factors that contribute to eye damage include fluorescent lights, computer screens, environmental allergens, and chlorine in swimming pools.

3. Sleep
Getting enough sleep is essential for eye health. Sleep time allows your eyes to fully rest, repair, and recover.

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Source: Yahoo Health May 20,2011

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Ailmemts & Remedies Pediatric

Babies Eye Sight

Vision in a baby’s first few months
To start with, they can see a toy or face in front of them but anything much further away is a blur. Slowly, the distance that they can see clearly increases, until by about six months they can see across a room.

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Many tiny babies also have a squint (their eyes look in different directions), which usually gets better within a few months.

Faces are a good test
Most babies can recognise their parents by about two weeks and start to smile at about six weeks. In these early days, most babies are particularly fascinated by faces and will focus on one in front of them – following it with their gaze (they prefer familiar faces).

This gives you a chance to test your baby’s sight from the age of six weeks.

•Sit your baby on the lap of someone they’re comfortable with
•Crouch down so your face becomes level with your baby’s face and about an arm’s length away from them
•Your baby should fix his or her eyes on your face (rather than looking everywhere else)
•Keep looking at your baby but move your head around from one side to another
•Your baby should keep his or her eyes fixed on your gaze
Alternatively, use a toy moved in front of your baby. They should be able to follow a brightly coloured moving toy held about 20cm (8in) away from them by about six weeks.

It can be difficult to be certain
Small babies are easily distracted and it can be very difficult to test their sight with certainty, so any worries you have are best checked by a professional.

Small babies can seem to take longer than normal for their brain to register what their eyes are seeing, even though there’s no problem with their vision. This is more likely in premature babies. After a matter of weeks, their visual sense suddenly kicks in and the problem’s resolved.

Serious visual problems are rare at this age, especially if his eyes appear normal, but occasionally they do occur.

A parent’s instincts should never be ignored. If you’re worried, talk to your doctor.

You may click to see to learn more :

How a Baby’s Vision and Eyesight Develops

Vision Development in Babies

Developmental milestones: Sight

Source : BBC Health.

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Animal Hide, Shell & Others

Haliotidis (Abalone Shell)

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Latin Plant Name: Concha Haliotidis
Pinyin Mandarin Name: Shi Jue Ming

Common English Name: Abalone Shell

Chinese Name:Shi jue ming

Part of Plant Used: Whole shell

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Properties: Salty in flavour, cold in nature, it acts on liver channel. It is effective for nourishing Yin and checking exuberance of yang, clearing away the from the liver to improve vision, relieving dizziness due to liver-yang and conjunctival congestion due to liver-heat.
Origin: It is the shell of Halio tis diversicolor Reeve, H. gigantea discus Reeve and H.ovina Chemnitz, family Halio tidae.

Property, taste and attributive meridian.
Salty in taste, cold in property. Enters the liver meridian.
Effects: Calming the liver-yang and checking exuberance of Yang, clearing away heat from the liver to improve vision.

General Usage: To be decocted before adding other ingredients.
Meridians Entered: Liver, Kidneys

Common Medicinal  Usages:
Action: To subdue hyperactivity of the liver, quench its fire and improve eyesight.

Indications: Headache and dizziness; blurred vision due to nebula, optic atrophy and night blindness.

This herb is used in formulas to treat high blood pressure, eye redness with light sensitivity, blurred vision, glaucoma, cataracts, headaches behind eyes, and spasms (TCM: Liver imbalances with heat symptoms).

Traditional Usages and Functions:
Quells fire and causes Yang to descend; brightens eyes and causes superficial visual obstructions to recede.

Common Formulas Used In : Rehmannia and Dogwood Fruit.
Processing : Required

Cautions in Use; Do not use during pregnancy. Not useful in most cases where there are no heat symptoms.

Click to see ->:Concha Haliotidis (Shi Jue Ming) – Improves Eyesight

Resources:
http://www.acupuncture-and-chinese-medicine.com/haliotidis.html
http://www.fzrm.com/plantextracts/sea-ear_shell_extract.htm
http://www.tcmtreatment.com/herbs/0-shijueming.htm

http://www.enwei.com.cn/b2b_en/page.asp?title=shijueming

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