Snow blindness Health Dictionary

The statutory de?nition – for the purposes of registration as a blind person under the National Assistance Act 1948 – is that the person is ‘so blind as to be unable to perform any work for which eyesight is essential’. Generally this is vision worse than 6/60 in the better eye, or with better acuity than this but where ‘the ?eld of vision is markedly contracted in the greater part of its extent’. Partial sight has no statutory de?nition, but there are o?cial guidelines for registering a person as partially sighted: generally these are a corrected visual acuity of 3/ 60 or less in the better eye with some contraction of the peripheral ?eld, or better with gross ?eld defects. In the UK more than 100,000 people are registered as legally blind and some 50,000 as partially sighted. The World Health Organisation has estimated that there are over 40 million binocularly blind people in the world. The causes of blindness vary with age and degree of development of the country. In western society the commonest causes are glaucoma, diabetic retinopathy, other retinal diseases and senile cataract. (See also VISION.)

Any blind person, or his or her relatives, can obtain help and advice from the Royal National Institute for the Blind (www.rnib.org.uk).

Night blindness An inability to see in the dark. It can be associated with retinitis pigmentosa or vitamin A de?ciency (see EYE, DISORDERS OF).... blindness

See VISION – Defective colour vision.... colour blindness

See under BLINDNESS.... night blindness

Alexia: a condition in which, as the result of disease in the brain, a person becomes unable to associate their proper meanings with words, although he or she may be quite able to spell the letters.

Word deafness is an associated condition in which, although hearing remains perfect, the patient has lost the power of referring the names heard to the articles they denote. (See also DYSPHASIA.)... word blindness

A condition in which the patient sees better in a dim light or by night than in daylight. It is only found in conditions in which the light is very glaring, as in the desert and on snow, and is relieved by resting the retina (see EYE) – for example, by wearing coloured glasses for a time.... day blindness

See onchocerciasis.... river blindness

(American) Frozen rain Snowy, Snowie, Snowi, Snowey, Snowee, Snowea, Sno... snow

White tea is one of the most subtle and delicate of all varieties of tea. Discover the unique features of a well known type of white tea - Snow bud tea and learn more about its benefits. About Snow bud tea Snow bud tea belongs to the family of white teas which is one of the softest types of tea. Coming from Fujian province of China, this tea is delicious and fascinating, most appreciated by tea lovers. From each bush, only the finest tea leaves are used, with a minimal amount of processing. Tea buds and leaves are harvested in early spring before opening, when they are still covered with white hair. After that they are left in natural sunlight for whitening and drying. Also called Xue Ya, Snow bud tea is an airy, light tea with a subtle, gentle taste. It has a very delicate body, with an effervescent texture. Its transparent infusion has a flavor similar to toasted grains or baked sweet potatoes. The color of this tea can be similar to both green or white tea, but mostly it is light yellow. How to brew Snow bud tea When preparing the Snow bud tea, spring water would be most suitable, in order to avoid impurities. Remember to never boil the water, as it will ruin the taste of infusion. The ideal temperature for this tea ranges from 70ºC to 80ºC (approx. 160ºF to 175ºF). Infuse it for approximately 5 minutes and enjoy the rich taste. Because it is a quite expensive tea assortment, you can brew it more than once using the same leaves. This will also lower the caffeine content and will result in a mellow, gentle taste. Benefits of Snow bud tea Chinese people believe that Snow bud tea is refreshing and it has even cooling and detoxifying properties. Recent studies have demonstrated that, compared to other types of tea, this one has one of the highest concentration of catechins, almost three times bigger than green tea. Lack of fermentation process, Snow bud tea has also more polyphenols, believed to be a possible anti-cancer agent. This tea is low on caffeine, so, due to this, the possible side effects are quite rare. Studies have shown that this tea has a strong effect in halting cell mutation in an early stage of cancer, thus it successfully fights many types of cancer. The Snow bud tea is also excellent for hydrating the body and skin, having a natural anti-aging effect. It also boosts the metabolism, making you burn fat faster. So it is ideal for diets. Snow bud tea may help in fighting viruses and bacterial growth, reduce infections, pneumonia and even dental plaque, thus strengthening the whole immune system of your body. Let’s not forget about its anti-inflammatory and antioxidant effect. It also improves cardiovascular function. Side effects of Sun bud tea As far as the side effects, there are no identified ones when drinking Snow bud tea, except few related to low caffeine content. People with intolerance to caffeine, should, however, avoid drinking it at night. Snow bud tea is best for those who prefer green tea but want to experience the benefits of white tea. The long list of health benefits and the lack of side effects makes it ideal for daily consumption. So enjoy a relaxing cup of tea.... snow bud tea

Inability to see at night or in imperfect light due to a deficiency of visual purple (rhodopsin) in the rods at the back of the eye due to low level Vitamin A. Night myopia usually affects people during twilight. “One in five people are not fit to drive at night.” May occur in glaucoma and other eye disorders. Other causes: old age, free radical damage.

Alfalfa tea freely.

Of value: Kelp, Irish Moss, Iceland Moss.

Diet. Vitamin A foods, carrots, bilberries, Cod Liver oil.

Supplements. Vitamin A, Beta-carotene. C (2g), E (400iu). B-complex, B2, Niacin, Zinc. ... eyes  - night blindness