Can be done of the sport when the voltage?

When you have high blood pressure, sports is particularly recommended. Regular, moderate physical activity is part of the treatment. This Council of exercise could even be entered on the order in the same way as drugs!

If you exercise regularly, your blood pressure will drop by approximately “1 point”, so the figure higher than for the lower number. For example, a 16-10 voltage can drop up to 15-9.

High blood pressure

Exercising regularly is, in fact, good for the body, it’s a workout: get your heart to better contract used. If you are short of breath for some effort, after a few months of regular exercise you will longer. Continue reading “Can be done of the sport when the voltage?”

Glasses or lenses, how to choose?

In several defects of vision, glasses or contact lenses may be proposed. One and others each have their advantages and their disadvantages. You won’t your eyes!

Fashion accessory and instrument of high-tech, glasses are increasingly challenged by more discrete lenses. To guide you in your choices, learn about the characteristics of each.

Contact lenses, a practical and aesthetic correction
Contact lenses are primarily used in the correction of myopia (80% of cases) and, to a lesser extent, hyperopia, astigmatism and presbyopia. They are placed in contact with the cornea and cut on both sides to correct the optical anomaly.

glasses or lenses

The glasses allow light rays to focus again on the retina and not in front of it as in the myopia or back as in hyperopia. There are the rigid or semi-rigid, whose maintenance is quite easy, but which are sometimes poorly tolerated by the eye. Easier to accept flexible plastic polymer versions require careful daily cleansing with a special product. There are also disposable lenses, can keep one or two weeks in a row. In all cases, the ophthalmologist will have to check before prescribing lenses if the eye produces enough tears to support these. Continue reading “Glasses or lenses, how to choose?”

The importance of early detection. Visual and auditory disorders in children

It is time of re-entry and the opportunity for our dear Heads blond or brown to be examined closely by school doctors, especially for Visual or auditory disturbances. Screening effective and sufficient? State of the premises.

According to the National Association for the improvement of sight (ASNAV), about 750,000 children emerging each year in France, about 90,000 have already or will meet a more or less important Visual problem. Between 4 and 6 years, one child in three is one or more visual defects, not to mention coordination of eyes or convergence.

disorders in children

Well see to read
A scientific study of a group of 600 students, followed by the kindergarten at the EC1, indicates a significant relationship between abnormality of uncorrected vision and a risk of learning to read, therefore, school delay. Continue reading “The importance of early detection. Visual and auditory disorders in children”

Color-blind: those who see never Red!

Color blindness is not strictly speaking a Visual pathology, but rather a feature that changes the perception of color. Transmitted genetically, this anomaly will endure a lifetime without deterioration or improvement.
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By observing a geranium in the light of a candle, the English chemist John Dalton had the feeling he does not correctly perceived color. It is and was identified by the end of the 18e century, the perception of color anomaly called colour blindness.

Color-blind

A male anomaly by the mother
This “color blindness” is linked to a hereditary genetic defect relatively common, but whose consequences are essentially masculine because 8% of men suffer for 0.5% only of women. This disparity is due to the fact that the gene for color blindness is carried by the sex chromosome X and it is recessive, meaning that simply the presence of a normal gene that the anomaly is not expressed. Women have two X chromosomes, it is color blind only if these two chromosomes inherited from both parents carry the defective gene, rare event. Continue reading “Color-blind: those who see never Red!”

3D, safe for the eyes?

Initiated with Avatar, the 3D phenomenon continues to grow. But this technological revolution is harmless to our eyes? The warning from Nintendo advising against the use of its console 3D in very young children sowed doubt… Today, the experts of the French society of Ophthalmology are reassuring.

The phenomenon of the 3D should take far-reaching in years to come. Revolutionary technology, is this breakthrough so safe? Would some people be more sensitive than others? First elements of response not before… 2012.

safe for the eyes

The Visual system is naturally very resistant
December 2010: Nintendo recommends against their new game with images in relief in children less than six years. The argument made: its prolonged use might affect the development of the Visual system. The alert, launched just before Christmas, has what surprise and worry. There is yet no panic! This warning is based on no scientific demonstration, said the French society of Ophthalmology (SFO) that ensures that the age where children begin to play with consoles in 3D, “there are long that the Visual system is structured”. And add: “the Visual system is strong enough to withstand the many requirements that we already been applying it”, as the 3: 30 a.m. daily television (statistics)! Continue reading “3D, safe for the eyes?”

the three stages of the view

More mobile baby becomes a real Explorer. His world is expanding. With the floor, he can assign names to objects before finally colouring and drawing. The vision of the child builds month after month with however specific appointments: 9 months, 18 months and 36 months.

The motor helping, the baby becomes a real Explorer. Four legs, it will affect what he saw. Greatly expanded its space and visually, he rules over his Kingdom.

little girl reading

Four legs, baby became Explorer
Still a few months and it will work. This vision must be as accurate as those of the “great”. He must see far enough to estimate the point of support on which it can run aground while collecting the soil where it is feet. It must also – such a baby missile – detecting obstacles on his way. Continue reading “the three stages of the view”

Glaucoma: an essential early detection

Eye disease, Glaucoma can lead to blindness. However, this progressive and insidious disease may remain asymptomatic for 20 years! Only early detection at the age of 40 years and a treatment allow a good management of the disease.

Today, an estimated 650 000 the number of patients treated for glaucoma, but 400,000 people would be affected without knowing2.

Glaucoma

Glaucoma: an insidious disease
There are several forms of glaucoma with chronic open-angle glaucoma which is often painless2 and the acute angle glaucoma closed, more rare but which causes severe pain. “In the case of chronic glaucoma affecting 2% of the French population of more than 40 years3, affection moved quietly but absolutely requires support since it represents the second cause of blindness in developed countries”, says Professor Jean-Paul Fox head of the Department of ophthalmology at the Val de Grace Hospital in Paris. Continue reading “Glaucoma: an essential early detection”

Glaucoma: zoom on current treatments

Reached irreversible of the optic nerve, glaucoma causes a progressive loss of Visual field. If the treatments do not cure, they delay the development of the disease… provided to take them seriously!

Following a first drug prescription for treating glaucoma, 20 to 27% of patients resume not their ophthalmologist appointment. “Most of the patients are not aware of the dangers of this disease.” “Feel no particular gene so they do not see the interest of regular treatment”, says Professor Jean-Paul Fox, head of the Department of ophthalmology at the Hospital of Val de Grace in Paris. However, a glaucoma that is not treated resulted in a partial or complete vision loss…

current treatments

Goal: stabilize the view
Thanks to the advance and the complementarity of treatments (drugs, laser, surgery), they delay substantially degradation of view1. “More glaucoma is diagnosed early and more treatments will be effective where the interest in screening early2”, underlines Professor Jean-Paul Fox. Thus, it is possible to stabilize the view in 80% of cases of glaucoma quickly supported. Continue reading “Glaucoma: zoom on current treatments”

The early stages of the vision

It has long regarded as blind infants. Today, these theses are forgotten and experiments have even highlighted a sensitivity to light as early as the seventh month of intrauterine life. Although imperfect, the vision of the newborn is an inexhaustible source of exploration of the new world.

Early work on the vision of infants date back fifty years. Robert Fantz believed that the fascination of the babies for the new things should be regarded as a kind of silent language.

The early stages of the vision

Two distinct concepts
The study of vision in infants is composed of two different concepts:

on the one hand that he perceives.
on the other hand that expresses the “eye” in the relationship of the newborn to its environment. It is the notion of “look-spell” of Ajuriaguerra. Continue reading “The early stages of the vision”

Pleased to see

Light, colours, curves and contrasts… Baby never tired to observe its environment. All of this information to stimulate her intellect. They will soon allow to distinguish faces and copy expressions.

After 6 weeks, the infant differentiates the objects to each other. He began to organize time in remembering the past and anticipating the future. He tends his body forward when his mother approached the bed arm outstretched to raise. He opened his mouth at the sight of the bottle. Visual information is therefore analyzed, understood and the child prepares for the next step and announced. There is interconnection between different perceptions.

Pleased to see

The distinction of the faces
The perception of faces by the infant is very studied by psychologists. If two drawings are presented in a young infant, one representing a human face and the other a figure geometric, the child will set longer human face. Does this mean that the child recognizes the face? It seems that it is not. Up to 2 and a half months, the child is in fact attracted by the more complex image, the richest in curves for example. Continue reading “Pleased to see”