Alert for Eye | Signs that advertise other diseases
The eyes are called the mirror of the soul, but can be much more than that. Analyzed by a physician, may be the window to discover certain symptoms that indicate other conditions in the body. Although it may seem strange, many diseases manifest themselves through the eyes, such as diabetes and heart problems. Here we have other examples, so you’re careful and do not neglect your yearly visit to the ophthalmologist.
What useful and important are the eyes! Can you imagine a day without them? Constantly working for us, allowing us to see the world around us. They also have their own “language” and without saying a word, they can express joy, sorrow and anger. To a trained specialist, the eyes may even say more: not only show symptoms of conditions that affect them directly, such as glaucoma or cataracts, may also show signs related to some other medical condition like diabetes or problems hearts.
But this is not unique. The eyes can afford to see other systemic diseases (other body parts), such as aneurysm, HIV, cancer and other hereditary problems. It is therefore important to have regular checks of vision, especially after 40 years of age (or earlier if your family history there are members who have or have had eye problems).
Regular visits to specialists concerned with the health of the eyes (ophthalmologists or optometrists), will detect the telltale signs of such disorders, and that only they can interpret. But there are other signs in the eyes that are visible to all. For example, pay attention to the following symptoms that may alert you to a health problem:
• Yellow eyes: some liver diseases, including hepatitis and cirrhosis, can cause the whites of the eyes take this color.
• Bulging eyes: may be a matter of familiar features, but often indicate that the thyroid gland (or thyroid) is malfunctioning. This makes the tissues around the eye to swell and give it a look bulky or outstanding.
• Red eyes: there are tiny blood vessels that cover the eyes, so spills can be induced sometimes contrasting with the white around the iris (which is blue, green, gray, brown or brown). In most cases, this has no obvious cause, but in some cases may indicate high pressure or problems in blood clotting.
• Eyes of different colors or heterochromia. In general it is a condition that is inherited, but can sometimes be related to any eye injury, hemorrhage (bleeding) or the presence of a foreign body. You may also be related to other conditions such as glaucoma, Waardenburg syndrome (which is a birth defect) or neurofibromatosis.
• Drooping eyelids or ptosis: Overall this is a sign of aging and natural aging of people but in some rare cases, may indicate the presence of a brain tumor or a neuromuscular disease called myasthenia gravis, which interferes with the nerves send messages to muscles.
• Irregularities of the pupils: in general, the black of the eyes is the same size in both eyes and react similarly when exposed to light. When you react differently, may indicate different problems, including heart problems are highlighted, a tumor in the brain or the optic nerve, brain aneurysm (a widening or ballooning of the wall of an artery in the brain), syphilis (a sexually transmitted disease caused by bacteria) and multiple sclerosis (a disease of the nervous system that affects the brain and spinal cord).
And the list could go on. Please note that children can also have signs in their eyes that indicate the presence of other health problems. These include:
• cloudy eye or an eye bigger than another: if a baby or child has an eye (actually, the cornea) larger than the other can be a sign of congenital glaucoma. A white reflection in the pupil may indicate a congenital cataract, a tumor inside the eye (known as retinoblastoma), or parasitic infection.
• crossed or lazy eye (amblyopia) is a condition that can be corrected in time, but also due to a tumor within the eye or a neurological problem. Take the child to a specialist to determine the correct cause and can be treated.
Again, if you notice anything strange about the color, brightness or shape of the eye of your child, be sure to consult a specialist.
For adults: If you are 40 years of age or older or if anyone in your family have or have had eye problems, be sure to go to regular consultation with the ophthalmologist to examine you and to enable guide you on caring for your eyes. So you can detect any condition, before complicating it more difficult to solve.
Glaucoma is the second leading cause of blindness in the world and most people are unaware they have it because of their lack of symptoms. The World Health Organization estimates that 4.5 million people are blind from glaucoma and by 2020 there will be 80 million people with this condition at the hearing. To keep you off guard, here are 10 facts you should not ignore about glaucoma.
When glaucoma is known as the silent killer of vision, as initially no symptoms. These only appear when there is damage, unfortunately, are often irreparable.
In fact, glaucoma is called a group of diseases affecting the optic nerve, which is the way of information ranging from the eye to the brain. So when that channel is damaged, usually can not be repaired, although it can be treated with surgery or medication.
At first, glaucoma usually affects side vision and can progress to affect central vision. The good news is that if glaucoma is detected early and treated quickly, usually can be controlled without losing or losing just a little vision.
Therefore it is important to become a complete eye examination at least once a year to detect the disease as quickly as possible and, if so, follow the appropriate treatment.
So you do not find unsuspecting, here are some facts you should know about glaucoma:
1. Although the condition usually develops after age 40 years and the risk of developing it increases with age, sometimes develops in youth and adolescents, who must take lifelong care to prevent disease progression.
2. One risk factor is to have high pressure within the eyeball, as well as having other conditions in the eyes as eye trauma, thin corneas, retinal detachment and inflammation of the eyes.
3. The high pressure inside the eye means that there is a risk of developing glaucoma, but not necessarily to have the disease. A person has glaucoma only if you have damage to the optic nerve.
4. Also at risk are those with diabetes, heart disease or other chronic conditions and those who have or had relatives who suffered from glaucoma.
5. Glaucoma can develop in one eye or both.
6. The lower eye pressure in the early stages of glaucoma, stops the progression of the disease and helps protect the eye.
7. There are different types of glaucoma, the most common is called “open angle”. Other types are: birth or congenital glaucoma, low-tension glaucoma or normal tension, and angle-closure glaucoma.
8. Open-angle glaucoma has no symptoms in its early stages, is painless and vision remains normal. But if left untreated, people start to notice that they no longer see as before, and without treatment, slowly lose their side vision (which eventually can be expanded to central vision, causing blindness).
9. The narrow-angle glaucoma, however, causes a sudden increase in eye pressure. Symptoms include severe pain, nausea, eye redness and blurred vision (in these cases should seek treatment right away).
10. Glaucoma is detected through a comprehensive eye examination including: visual acuity test, visual field test to measure side vision (peripheral) examination with dilated pupils.
Remember that the best way to control the progression of glaucoma is to detect when it is still in its early stages and be treated before it causes vision loss.
So if you’re in the risk group, be sure to consult your ophthalmologist (a doctor specializing in eye) and make an eye examination through dilated pupils every two years. And if you are diagnosed with glaucoma, it is very important that you continue with treatment as indicated to you by your doctor, even when you feel better or have no symptoms. That way you will be caring for the health of your eyes and you can still enjoy every moment of life, in full color.
A person who has developed IgE antibodies to recognize one or more allergens (pollens, molds, animal dander, dust mites, etc.) Is said to be sensitized to these allergens. The molecules allergen-specific IgE in the blood travel to tissues where they cover the surface of mast cells. Up to 500,000 IgE antibodies with different specificities may be present on the surface of a single mast cell, thereby allowing each cell to recognize many different and unique allergens.
Mast cells found in abundance especially in the lining of the nose, eyes, lungs and digestive tract, are activated when allergen molecules make physical contact with IgE antibodies on the surface of a cell can recognize specific allergens. Then the mast cells of an individual who has developed IgE antibodies to cat antigen would not be activated by exposure to ragweed pollen.
An allergic reaction starts when the molecules come into contact allergens activate mast cells and covered by the allergen-specific IgE. Once activated, the mast cell releases a variety of potent chemical mediators, all of which have potent inflammatory properties. These include chemicals such as histamine (hence the therapeutic use of antihistamines), leukotrienes and prostaglandins, and cytokines (protein molecules which serve as regulators of cell interactions).
One of the most important advances has been the recognition that allergic reactions cause inflammation of the tissues which are carried out. An allergic reaction triggers a cascade of events, starting with the release of mediators of activated mast cell. These then recruit other inflammatory cells from the bloodstream to areas where they invade other cells surrounding local, free additional chemical mediators, resulting in inflammation of the tissues involved.
Many of the symptoms of allergic diseases such as chronic edema or swelling, excessive activity of mucous glands and hyperresponsiveness to irritant stimuli is thought to result from the perpetuation of tissue inflammation due to repeated exposure to allergens.
Computer Is The Achievement And Is Sophisticated
The twentieth the century has witnessed many scientific discoveries and inventions that have revolutionized our life. They have led to the creation of mechanisms and artifacts which have made-our life more efficient, smooth and comfortable. Computer is the latest addition to such achievements; it is the most sophisticated and integrated chi) as the computer-based technology has found applications in agriculture, biotechnology, oceanography, engineering medicine and information technology. A computer is capable of storing and processing enormous amount of information at a lightning speed. Efficient exchange of mail is the most remarkable feature of the revolution that the computer has ushered in.
An Article And Essay On Computer : The Silent Harbinger Of A Silent Revolution
A card has replaced a passbook a click of the button gives the latest values of ‘international currencies, fluctuating share prices; retail and wholesale prices of commodities, status, of train and plane reservations, ‘educational and employment facilities and many other facets of our life. We do not have to ‘stand in the serpentine queues to Ancash a cheque or deposit our savings a computerized bank today. People are moving to banks which offer these facilities. It is high time Indian banks also offered these services to their clientele. The rapid growth of tourist industry has been possible on account of the computerization of rail and air reservations to major tourist destinations in the country, hotel reservation, local transportation, etc.
The University Grants Commission has also plans to computerize admissions to colleges and universities in the country. This is certainly going to revolutionize our present life style. In recent years, computerization has been employed in the field of medicine also. Computerized ECG and EEG, pulmonary function analysis, drug-designing.czc., have become common. Heart specialists and computer scientists have developed expert systems (computer programmes based on artificial intelligence), which can, diagnose disorders of the heart-using ECG recording as the input. A few such uses to which the computer has been put are: PUFF (for lung disorders), VM (to monitor patients in intensive care and advise on respiratory therapy), MOLGEN (for experiments in molecular genetics), ABEL (to diagnose acid-base electrolyte disorders) and MYCIN (to diagnose bacterial blood diseases). A well-known application of computer is CAT (Computerized Axial Tomography). This-helps to photograph the changing conditions of an affected area and helps the doctor to correctly examine the patient. correct analysis, in turn, leads to correct diagnosis.
The computer plays an important part in medical research.
It is expected that by the end of the twentieth century, computer- assisted drug development will lead to the formulation of drugs to fight diseases like AIDS, cancer and rheumatoid arthritis. The advent of a new generation of computer and sophisticated software will turn this dream into reality. In our country, the economy is labour-intensive and it is feared that the use of computers may drive our large working force out of employment. If all the public sector undertakings are computerized, the trade unions are apprehensive of large-scale dismissals of employees. The Government must, therefore, devise a well- formulated plan before going in for mass computerization. It is, however, also a fact that we cannot survive and compete with other global economies if we do not resort to mass computerization. For instance, the demand for telephones has been steadily on the rise.
Only a merger of computers all I telecommunications can help meet such a demand. Significant earth-bound applications of spacecraft are being realized with the launch of INSAT satellite series and the IRS remote-sensing satellites, viz., IRS-1A, 1B, during the last decade. These applications include communications, meteorology, resource prospecting, disaster management, etc. Computers are not’ only the harbingers of a silent revolution, but also the binding force in today’s world. They have changed the outlook and lifestyle of mankind today.
And man has been educated scientifically-to adapt computers to his own benefit. Reviewing some 46 discoveries between 1900 and 1950, A History of Technology edited by Trevor I. William) points out that longest intervals-50 to 80 years-were taken up by the fluorescent lamp and the cotton picker, and the shortest-one year-by Freon refrigerants. Computer reached us even taster. It has thus proved to be revolutionary, both in concept and applications. It has hastened the pace of revolution. We must, however, put it to proper use, instead of using it for rocketry and missiles. It marks a complete breakaway with the past.So this was an essay on computer.