Focus Retina

Understanding how a horse sees the world can help a great deal when we'd like to know why horses act the way they do.Horses perceive their environment differently than humans because of the way their eyes are structured. There is some controversy surrounding the eyes structure of horses. Horses were thought to have ramped retinas, meaning their eyes don't form a true arc making the retina closer to the lens, but now it is believed that this may not be the case. A horse's eyesight is optimised for grazing and watching for predators at the same time, but as such, it becomes a handicap when judging distance and height and this is why you'll notice that horses lower their heads when approaching a jump...

Fingerprint method can be misapplied. This reality is proven scientifically correct. For that reason, people then try to find the more reliable biometric systems. The retina is part of the eyes that is responsible for the ability to see. The pattern of blood vessels that forms the retina is as unique as fingerprint. The principle of retinal scanning technology is scanning the pattern of capillary blood vessels on the retina with low-intensity light sources. In 1987, the first retinal scanner was made by Leonard Flom and Aram Safir and has been patented. However, by the year 1994, John Daugman developed the technology of iris scanning as a competitor for retinal scanner. Retinal scanning principle...

There is overwhelming evidence that tanning bed side effects are damaging to the skin. The whole object of tanning is to look better. However the side effects of tanning are so damaging to the skin that the results can be older looking skin or even death. Some of the most devastating results of the tanning bed side effects include: * Malignant melanoma - This is a skin cancer that is developed in the skin cells that give the skin its pigmentation. This form of melanoma has increased more rapidly over the last 4 decades than any other form of cancer. In the United States, this type of cancer is responsible for over 80 percent of deaths linked to skin cancer * Basal cell carcinoma - This is the...

Our eyes contain a transparent, biconvex intraocular tissue that helps bring rays of light to a focus on the retina this is known as the crystalline lens (natural lens). As we as baby boomers are aging this lens, unfortunately, stiffens and hardens causing us to lose our ability to focus and creating vision problems.  When this lens becomes so cloudy or opaque that our retinas cannot create clear images, it is said that we have contracted a cataract. With a cataract, it becomes extremely difficult to see in very bright light or low–lighted conditions. Fortunately developing a cataract does not mean you will never see again as doctors worldwide can perform cataract surgery in a safe and effective...

Antioxidants slow or prevent the oxidation of other molecules. They are found in many different kinds of foods and can also be taken in the form of supplements. When molecules start to oxidize, they produce free radicals. This process can damage biological reactions and the cells too. Antioxidants serve to absorb this oxidation. They also contribute to the molecule redox process as a reducing agent. A reducing agent is a substance that causes another substance to undergo reduction, while becoming oxidized in the process. The most common antioxidants include vitamin A, vitamin C, lutein, carotenoids, lycopene, vitamin E and selenium. These are dietary substances and can be found in foods as well as...

Contact lenses rest on your cornea atop a constant supply of tears. The contacts are also held in place by pressure exerted from the eyelids. When you blink the pressure from the eyelids cause the contacts to move slightly and glide over your cornea. This allows the tears underneath to gently flush out trash or debris that may have accumulated in your eye. This is just how the contact stays on the eye and is able to provide a way to correct vision. The way the vision is corrected is a different story altogether. Contact lenses are prescribed to a wide variety of individuals who have vision problems associated with astigmatism, nearsightedness, farsightedness, and presbyopia. The retinas of...

Eye problems are the most common genetic disorder facing Australian Shepherds. There is a multitude of diagnoses, including merle ocular dysgenesis, cataracts, collie eye anomaly (collies are a closely related breed), deformed iris, persistent pupillary membrane, and persistent hyaloid arteries. Merle dogs have a reddish brown or black coat with lighter red or grayish patches. Dogs with this particular kind of coloring frequently also carry the genes for irises with parts missing, cataracts, small eyes, misplaced pupils, lens misplacement, retinal deformities or detachment, persistent pupillary membrane, missing tissue behind the retina, or bulging parts of the eye. Irises with parts missing can...

Active military personnel and even those in training are at a risk for serious eye injuries from flying fragments, dust particles and other forms of impact. To minimize these risks, military personnel use special eyewear, such as goggles, to help protect their eyes. Military personnel who require the aid of glasses to perfect their vision would find it impossible to wear glasses along with these special goggles. And because contact lenses are prohibited, special prescription optical inserts have been developed for military personnel needing vision correction. Unfortunately, these inserts can cause harm because some are not shatter-proof and cannot withstand high velocity impacts and can damage the...

Seeing - The part of your eye that gives it its color is called the iris. It has lots of tiny muscles that open your pupil ( the round hole in the center) to let in more light when it's dark, or make it smaller when it is very bright out. - What film is to a camera, the retina is to your eye. It has millions of two main nerve cells to catch light. Rods - which are mostly around the sides, are best at helping you to discriminate light and dark. Cones, which are near the center, are for detecting color. Nerve cells from the retina connect your eye to the parts of the brain that process vision - the occipital lobes which are located in the back of your head. - Like your fingerprints, irises and retinas...

ses make a huge fashion statement today, but sunglasses are not all about just fashion. Sunglasses protect your eyes from harmful UVA & UVB rays preventing macular degeneration. Macular degeneration is a condition that results in a loss of vision due to damage to the retina. Macular degeneration makes it difficult to read or to recognize faces. Ways to prevent macular degeneration include the following: TIPS 1. Wear Sunglasses that offer 100% UVA & UVB Protection 2. Wear wrap around sunglasses or bigger style sunglasses to block UV rays from all directions. 3. When purchasing sunglasses look for a tag or a sticker on the glasses stating the lenses are 100% UVA & UVB Protected. 4. Be sure to purchase...

Blurred vision can be an entirely unpleasant experience. Not to mention the fact that it can be a symptom of serious diseases and disorders. The most common cause of blurred vision is the weakening of muscles which misshapes the lens of your eyes. When the lenses also lose their elasticity, it can also occur. Loss of elasticity is quite inevitable with aging, but this process can be slowed down by antioxidants. Cataracts are another cause of blurred vision. Driving at night can be particularly difficult for patients with cataracts because the headlights of vehicles may blind or dazzle them. Another cause of is macular degeneration. Macular degeneration occurs when neurons at the back of our eyes...

Are you concerned about your eyesight and are wondering if one of the benefits of taking lutein is healthier eyes? Well the answer is yes and let me explain why. The importance of getting lutein in our diet is it helps avoid macular damage by free radicals and as we age. You see at any given time there are over 25 to 30,000,000 people worldwide that are afflicted with aged macular degeneration. In case you didn't know this is an antioxidant found in the macular pigment of your eye and is a member the carotenoid family which is a group of fat-soluble pigments that are naturally found in plants. Being an antioxidant by their nature their job is to fight free radicals. These free radicals as we age...

217;s cheap, painless—and can reduce this country’s healthcare spending by $24 billion over five years. What am I talking about? It’s not the latest medical invention or drug. Nope, it’s supplements. According to exciting research from the Lewin Group, spending just a few cents a day on some key nutritional supplements can significantly decrease chronic illness—as well as healthcare costs. Using strict criteria, the Lewin Group analyzed scientific studies on nutritional supplements, then used our government’s own accounting techniques to determine their economic impact. They looked only at Medicare recipients and women of childbearing age, and only at supplements...

Macular degeneration devices are by no means a cure for this condition (which is usually age-related and irreversible). However, these types of low vision aids can help those with such vision problems by enabling them to optimize what eyesight remains. These low vision products and macular degeneration devices include magnifiers and bifocal and telescopic lenses. Low vision specialists tell us that macular degeneration usually affects the elderly; however, there are people who have a genetic predisposition to this condition and may suffer from it at an earlier age. Located in the central portion of the retina, the macula can deteriorate - shrivel, develop holes or bleed - over time. The major...

Low Vision, also referred to as “partial sight, vision loss”, has been defined as “reduced central acuity or visual field loss which even with best optical correction still results in visual impairment from a performance standpoint. Low vision affects many aspects of life, the main goal in the field of low care therefore, is to assist the low vision patient in making the best use of remaining vision for a reasonable quality of life. Education of students with low vision has become a central focus of concern in special education in different countries such as Dubai. Student with visual impairments have received educational services in a variety of settings including schools for blind or in...

Vision Problems Benefit From the Attention of Low Vision Specialists Correcting vision problems is the domain of low vision specialists. Comprised primarily of optometrists and ophthalmologists, these specialists deal with maximizing the remaining vision you do have, in order for you to enjoy the activities of daily life. They provide solutions to eye vision problems, including products such as magnifiers and bioptic glasses, in order to improve your visual range. What Types of Vision Problems Can Be Helped with the Aid of Low Vision Specialists? Low vision can be caused by several different means. Some individuals are genetically predisposed to developing low vision, such as some that have...

Flaxseed has been used for thousands of years, but it is only recently that the benefits of flaxseed have become clearer to the medical community. This new wonder supplement has been shown to help fight diabetes and heart disease, and now some experts say that it can even help combat some types of cancer. What is flaxseed? You may not know it, but flaxseed has probably been part of your diet ever since. It is rich in essential omega-3 fatty acids which stabilize your blood sugar, help lower your cholesterol, and lower your risk of developing cancers of the prostate, breast, and colon. The benefits of flaxseed go beyond this - in fact, recent researches have also demonstrated that it may help in the...

Macular degeneration, because of its association with the aging process, is referred to as age related. You will find the macular positioned at the back of the eye forming the central part of the retina. The retina is made up of a layer of nerve tissue and is responsible for sending light to the brain. A common analogy used for the retina is that it acts much the same way as the film in a camera. Without the macular we wouldn't be able to see fine detail or objects which are directly in front of us. Faces would be unrecognisable and tasks like driving, reading and writing along with many other detailed activities would be unobtainable. The wonderful world of colour would also be denied leaving us to...

Are there special coenzyme Q10 benefits for Babyboomers? You bet there are. This crucial substance is essential to good health at every time of life, but if you're over 50 you need it more than ever. Here are five reasons why: 1. It increases energy and enhances endurance. A vitamin-like substance that is present in every cell of the body, CoQ10 plays a key role in the production of energy. It acts as a "messenger link", triggering the biochemical reactions that make up the energy production process. When levels of the coenzyme are low, the reactions don't take place. A 2008 Japanese study showed that taking daily 300 milligram supplements of CoQ10 for as little as one week had a significant...

Many people always think they have nurtured very good habits on nutrition taking. However, some of them are still suffering from nutrition-related vision problems that can be cured by using some nutrients in a scientific way. Therefore, scientific study of nutrition is very important. With correct knowledge of taking some specific supplements, sufferers of particular eye diseases can do a much better job in solving their problems. Generally, those sufferers will recover their vision after taking those supplements correctly. It is said that prevention is much important than treatment. Thus, people are suggested to pay more attention to this respect though they have no such related eye problems now...

Problems regarding vision are really commonplace nowadays, but that's no reason to underestimate them. There are plenty of examples: there's the usual problem which most people face, that is, a blurriness of vision, and then there are halos, blind spots and also, floaters. Blurriness is caused when the eye loses its power to focus on small and sometimes minute details on objects. Blind spots are certain areas on the eye through which you can see nothing, and are thus, rendered blind in those 'spots'. These are also called scotomas. These problems are pretty serious, and should only be checked and diagnosed by a qualified doctor or medical practitioner. Because more often than not, instead of being...

> Vital information on macular degeneration. Dry eye, as the name suggests, is an uncomfortable state of eyes, in which the eyes are restricted to shed tears. There is a special layer possessed by human eyes, known as tear film, which is responsible for generating tears. In the dry eye syndrome, this film is disabled to work appropriately to secrete the desired amount of tears. The symptoms of dry eye include itching and burning sensation, pain in eyes, improper vision, tear secretion while watching TV, stringing eye muscles and discomfort with contact lenses. What Leads To Dry Eye Dry eye is caused due to a number of factors related to age, place of living, job and activities carried out by the...

As a person ages, he/she is vulnerable to age-related illnesses such as wearing out of his/her vision. The macula which is located at the rear part of the eyes is affected by the gradual break down of it. There is what we wet macular degeneration, and dry macular degeneration. If it is not really apparent to your own knowledge, the distinction between the two is the mere presence of their exudate (in wet macular degeneration there is a growth of abnormal blood vessels while in dry macular degeneration, patients usually begin with the formation of tiny yellow deposits called drusen). The prevalence of dry is 90 percent over AMD patients. Most of the time, distortion of vision is caused by dry AMD but...

In my articles, I often write about the attraction of condo life to the youngest generation. The young are motivated to live in desirable neighborhoods while immersing themselves in their careers, free of lawn care, snow removal, roof or gutter maintenance. However, interestingly this housing lifestyle also appeals to the older generations. This includes early retirees, ready to take life a little easier. It also includes the elderly who can no longer manage steps or may not be able to drive. To help build some bridges between them, in this article I will cover condo lighting as it affects the age groups a little differently. Some of the tips can apply to anyone. 20-SOMETHINGS For many young people...

If you are like any aging human on the face of the earth, you will want to preserve your failing eyesight till the end of your days. However, you may be already floundering in the dark for a good way to do so and perhaps with a bit of luck you will already have heard of a carotenoid called 'Zeaxanthin'. If you have not, then this is a good place to get started and to get led to a source at the end of the article which will explain the benefits of zeaxanthin and the best zeaxanthin source you could get your fill from. For those of you who are not aware of the benefits of zeaxanthin or what it really is, this article may be of some help in educating you and guiding you to sources of better information...

With everyone selling lutein in some form or the other, many are becoming skeptical when it comes to believing the promises made to sell products. Everyone with bad eyesight are asking, "Will lutein improve my vision?" The fact of the matter is that if your vision is impaired due to a lutein deficiency then lutein will definitely improve your vision. Let us take a look at the conditions in which lutein will definitely help. Lutein prevents damage to eye tissue by reducing the effect of free radicals on the tissues in the eye. Free radicals are highly reactive atoms that act on other healthy atoms in the tissue and damage them. These reactive atoms need a supply of free electrons which lutein is able...

Your doctor will also look for signs of dry eye disease, which must be treated and cleared up before LASIK can be performed. Locate a local lasik doctor. The information about lasik eye surgery does not constitute a patient doctor relationship. LASIK eye surgery is still considered new technology. Laser surgery is a refractive technology that reverses the effects of refractive errors in the eye. Pain is rare with LASIK, although some patients will experience some discomfort. Most Dallas patients have described a pressure sensation but no pain during LASIK eye surgery. Both nearsighted and farsighted people can benefit from the LASIK procedure. Some health conditions will disqualify you...

A nagging question in the minds of dieters is how safe these diet pills are amidst reports of the side effects and health hazards these drugs pose against their users' health. Studies reveal that diet and weight loss pills can have a significant effect on a user's blood pressure, overall health and metabolism. Most of these diet pills have unpleasant side effects, promote drug dependency and interfere with other medicines we take. They are not designed to control obesity - depending on a person's health status, the perceived advantages may be outweighed by perceived risks. At best, these pills should be viewed as short term aids for the severely overweight dieters. Clinical studies reveal that to be...

The macula is a very small spot in the center of the back of the eye (retina) that sees clear, colored vision. The other part of the retina is composed of rods that see movements. So it can be pretty scary if a hole develops in this part of the eye. Aside from a blurry vision, macular holes can also affect night vision and peripheral vision. Macular holes are more likely to develop in people around the age of 60. Holes in the macula can occur due to vitreous shrinkage and/or separation, eye injury or a detached retina. Although the development of macular disorder is yet to be determined, it most likely occur from the vitreous. A vitreous is a gel like material that fills the back of the eye. Also...

After emerging victorious after a fun and refreshing bodyboard session at Ocean Beach yesterday, I turned to watch my husband, Mark, catch some more waves. As I stared out at the surf zone which was strangely gray and foggy, even as the beach was bathed in sunshine, I noticed that my vision was filled with small black dots. When I blinked and the dots did not disappear, a fear rose up in me. I turned to look at sunbathers on the sand, and the dots seemed to dimish; but they were really stark and obvious when I again turned towards the fog. I've had floaters in my eyes for years, and have paid visits to the eye doctor because of them. He has said they are something I'll just have to live with, and...

Almost every day that goes bi in Primary Care, one or more eye problems present for care. These may range all the way from simple and easily remedied to emergent, needing quick referral to an eye specialist. The purpose of this article is to present a hypothetical day in the office with a wide range of eye disorders.   Let's say for starters that there is a fellow in Room 1 who thinks he has a contact lens stuck under his lower eyelid. Since it is potentially misplaced we will call it a possible foreign body in the eye. We numb his eye with tetracaine drops and after it is anesthetized, we gently invert the lower lid and look for the lens. It is not there so we gently invert the upper lid and look...

an eye is an amazingly complex and delicate structure that really is really fascinating to look at in detail. It is amazing to think that these small structures are able catch and help process the environment around us with such acuity and clarity. The structure of the eye is pretty neat when looked at. First the enveloping membrane of the eye is called the sclera. It is a rather firm outer layer and is seen as the white areas surrounding the pigmented iris. The cornea is like the sclera in that it acts as an outer cover for the eye, however it is clear allowing for the passage of light. Inside the cornea we have the aqueous humor. This is a jelly like substance which acts as a buffer between the...

The most encouraging fact about your eyes is that the less effort you make to see the better you can see. It is difficult for people with imperfect sight to believe that perfect sight requires no effort; indeed, any effort to improve the sight makes it worse. Curiously enough, we have long known that before we can swim or dance, play tennis or golf, or master a musical instrument, our muscles must be relaxed. Acquiring that relaxation of the muscles has often been the hardest part of learning any of these things, but without it all the other lessons are useless. It is a similar case with the eyes. It may be helpful here to summarize briefly the structure of the eye. The eyeball is embedded in fat...

Retinal detachment in dogs can occur in just one of your pets eyes, or it can affect both eyes at the same time. It can result in reduced vision, or if it is severe enough, it can cause your dog to go blind. It can also cause your dogs eyes to hemorrhage or become severely discolored. It may also put so much pressure on the retina, that the pupils will become so dilated that they will show absolutely no light reflex at all. Treatment must begin as soon as possible with this condition, or your dog will become permanently blind as a result and it could happen within a couple of days as it is that severe. But contrary to some misconception, it is not always the result of an ocular problem; it is almost...

Just recently, a friend of mine from the church we both go to, had cataract surgery. He told me that after he was done, he saw better than he had ever seen since he was a kid. You had to see the look of joy all over his face. Yes, cataract surgery, especially with today's modern methods, is a great thing. However, there are still risks involved in having this kind of surgery. This article is simply meant to point them out so that you can make an informed decision about whether or not this is something that you want to consider having. First, let me give you the good news. About 98% of the people who have cataract surgery have wonderful outcomes and vision that is greatly improved. This is a...

Incredibly energetic, Collies enjoy nothing as much as they delight in a long run. This might give the sense that a Collie is a generally healthy pet, nonetheless, like quite a few different breeds of dogs, Collies get a number of common health conditions that most of them will cope with in the course of their lifetime. Despite any ailments, the Collie is one of probably the most intelligent canines that a person might own. This particular article will focus on the top three most frequent Collie problems. Perhaps one of the most typical of all Collie problems is actually hip dysplasia. This particular hereditary disease is typically passed down from the parents of your pet. Although genetic...

The most encouraging fact about your eyes is that the less effort you make to see the better you can see. It is hard for people with imperfect sight to believe that perfect sight needs no effort; indeed, any effort to boost the sight makes it worse. Curiously enough, we have always known that before we can swim or dance, play tennis or golf, or master a musical instrument, our muscles must be relaxed. Acquiring that relaxation of the muscles has often been the toughest part of learning any of these things, but without it all the other lessons are useless. It's a similar case with the eyes. Click here to learn eye exercises. The eyeball itself is made of 3 distinct layers, or coats. The outer part...

The diagnosis of diabetic retinopathy in the early stages of this complications can control the severe consequences that are inflicted by the disease. So in order to diagnose retinopathy in diabetics it is recommended that the patients should have an annual screening of their eyes. For this a national screening (or testing) programme for diabetic retinopathy has been set up by the Department of Health. These screening programmes are a part of patient education in online pharmacy education and counselling. They offer annual screening for the diabetics at 11 years of age with diabetes type 1. This was developed in order to detect retinopathy as early as possible to treat it effectively and avoid the...

Still sticking to generic neuroendocrine cancer codes? If so, your claims will lack ICD-9’s specificity requirement. Try to avoid this. Most of the ICD-9 2010 changes expand disease subcategories to provide more specific descriptions. Getting new diagnosis codes that provide additional specificity can certainly be a plus point for coding accuracy. The following changes effective October 1 will certainly help you avoid this error. • ICD-9 2010 comes up with six new diagnosis codes that describe Merkel cell carcinoma, an aggressive neuroendocrine skin cancer that tends to grow quickly and may metastasize at an early stage. Such spefice codes for Merkel cell wasn’t there before this. • The ICD...

High blood pressure can pose a serious health risk to your eyes. Hypertension typically hardens blood vessels denying them the ability to flex and efficiently control the distribution of blood when the heart beats. Additionally, HBP encourages the development of plaque along the walls of the blood vessels. We usually think of these conditions occurring in the arteries but the truth is it occurs in the entire vascular system to include the delicate vessels in the eye. If the vessels in the eye become blocked or leak, nutrients and oxygen can not reach the cells in sufficient amounts. Consequently, HBP or hypertension may cause one or more of the following conditions: - Retinopathy: If the vessels...

> Border collies are incredibly active dogs yet they may experience health problems in their lifetime. Know what these health problems are... When it comes to livestock work, nobody can belittle the abilities of border collies. These intelligent and hard working dogs are excellent in herding different kinds of animals from sheep to cattle, pigs, ostriches and others. This characteristic makes them champion in every farmer's hearts. Border collies excel not only in herding but in other activities as well such as flyball and disc dog competitions. In order to keep them happy and fit to do the tasks expected of them, breeders should make sure that they produce healthy puppies free from diseases such as...

Bietti's lucid dystrophy (BCD) is uncommon inherited heart disease characterized by crystals in the clear-cut coating of the heart. The symptoms of BCD include: crystals in the cornea ; yellow, glossy deposits on the retina; and liberal wasting of the retina, choriocapillaries and choroid. This tends to head to liberal night blindness and visual area constriction. BCD is an uncommon disease and appears to be more popular in folk with Asian descent. People with BCD have crystals in some of their light-colored blood cells (lymphocytes) that can be seen by using an electron microscope. Their presence does not seem to harm the patient in any other way except to affect vision. BCD is inherited primarily...

Color blindness is the difficulty faced by many people in identifying and recognizing different colors and shades. Usually in healthy people with normal color vision (trichromats), there are photoreceptors, known as cones that are concentrated in the centre of the retina, which contain 3 different types of photosensitive pigments -- blue, green and red -- that allow identification and differentiation between different colors and shades. However, in some individuals, the cones become dysfunctional due to the deficiency (anomalous trichromats) or complete absence (dichromat) of one or more of these photosensitive pigments. As a result, the individual develops difficulty in differentiating between...

Have you ever noticed that when it starts to get dark you start to yawn, and when the sun is shining on you in the morning it is difficult to stay asleep? This isn't coincidence; it is your body's circadian clock functioning correctly. This is the biological clock that every mammal has that tells you to be active during daylight and rest when it is dark. The technical term for this clock is the suprachiasmatic nucleus, or the SCN. The SCN consists of two very small brain structures that contain about twenty thousand neurons combined. Light that hits the photoreceptors in the retina creates a signal that is sent along the optic nerve to the SCN, according to Health Link. One of the major functions of...

People who complain of certain eye problems will usually see their primary care doctor or emergency room physician. These doctors can diagnose some of the diseases and probably treat some of them. However, much of the treatment is reliant on an eye doctor. If the patient needs glasses, they will have to go to an ophthalmologist for the full examination. However, there are many reasons why a person would need an eye doctor, and these will be discussed. There are many things to ask to assess someone's eye condition. It is important to do a thorough interview as well as examination to get the correct diagnosis. A patient might be asked depending on their condition these questions. Do they have vision...

In our eyes, there is a very special transparent part, called vitreous humor that decides the shapes of our eyes. The main ingredient of vitreous humor is liquid. Where is the specific location of this substance? It lies between our lens and retina. To some extent, our retinas are fixed by the force generated by this substance. Vitreous humor is a very complicated tissue. For example, in it are thousands of blood vessels and fibers that stretched to retinas. Here is an eye problem that is firmly related to vitreous humor. As mentioned earlier, our retinas are fixed by the force generated by this tissue. What will happen if this force becomes weaker? As we grow old, vitreous will become weaker and...

You may be the type of person who never leaves the house without your sunglasses during the warmer months. Not only are they great protection from the sun's glaring rays, but they're also quite the accessory these days as well. And if you're like a lot of people, you probably own more than one pair and scout the sunglass display in the local markets every time you walk by. Well, good for you for taking care of your eyes! But did you know that sunglasses are just important in the winter as they are during the rest of the year? It's true, and here's why. Sunglasses actually play a big role in good eye health. The UV rays from the sun are very strong - all year round - even though they don't always...

In order to help people get the health benefits of vegetables, without actually eating them, vegetable supplements are becoming increasingly popular. Made from dehydrated vegetables, dried vegetables and fruits or juice concentrates, these supplements may be able to fill in the gaps created by personal preference and seasonal availability. It is said that "variety is the spice of life" and when it comes to fruits and vegetables, variety may lead to better health. In a perfect world, we would all eat a serving each of green, dark green, red, dark red, orange and yellow vegetables or fruits every day. In the real world, we are lucky to get a red and a green, which is usually the lettuce and tomato...

Lutein has long been used for d、ifferent purposes. This special nutrient is quite multi-functional. The widest use of lutein is to impart colors ranging from yellow to orange-red. This function of lutein comes from its capability of absorbing blue light. The degree of color change depends on the amount of lutein.   Another function of lutein is to fortify chicken feed. Chickens can not produce lutein naturally. Chicken feed fortified by lutein can make the skin color of a chick to appear in yellow. Another result of the consumption of lutein-fortified feed is the yellow yolk. With this explanation, it is quite understandable why yolk is a good source of lutein. For the human being, lutein can be...