Guest guest Posted January 22, 2007 Report Share Posted January 22, 2007 Below is from an e-mail from Ambros, the first person I came to befriend on the first health related e-list I joined, about 8 years ago . Alobar ========================= I am a firm believer that getting older does not mean one's vision has to deteriorate. Though I am almost 74, I don't need glasses. I can read fonts as small as 8 points without trouble and I can descry a crow in a tree half a mile away. I am sure that my jogging has a lot to do with it. The right kind of nutrition does too. And I do eye exercises according to the Bates system regularly. Have long been aware of and conscious of good vision being the wages of good living. While in Africa, just below the Sahara, I met many old desert dwellers. They amazed me with their good eyesight. We'd have contests at night who could identify smaller stars. Some of the oldies, old enough to be my fathers, beat me. I had star charts, which they could not read; but I'd know if they'd try to cheat. Nowhere on earth are night skies fuller of stars than in the dry air of the deserts. Instead of further disquisitions, I send you an article I wrote on how to maintain good eyesight. Ironically, I wrote it for an oculist in the Philippines who checked out the eyes of my wife. More some other time. Here the article. I think you wear glasses. I think too that, if in addition to skating and jogging and otherwise living reasonably healthy, you could dump your glasses if you did the basic eye exercises for a few months. Ambros waterbuf @ chebucto.ns.ca Could You Be Reading Without Your Glasses or Contact Lenses Again? Few People Would Need Eye Glasses If.... I don't, Doctora, expect you to to everything I am about to tell you. We tend to find it easy to believe what it is to our advantage to believe but very difficult to believe what does not serve out purposes. If you were to recommend to your patients what I recommend to you, many of them would not need glasses any more; that is to say, you would be doing yourself out of business, something one can't reasonably expect of you considering the time, effort and money you invested in becoming an eye doctor. Still, I hope that you will find my piece at least interesting. We tend to take it for granted that, as people get older, they will get sicker, and we take it for granted that, as people grow older, their eyes grow weaker and they need glasses. Neither assumption is valid. If people do get sicker as they grow older, that's less the inevitable accompaniment of aging than the cumulative effect of years of faulty living; and, if a good many people need glasses before they have reached the mid-point of their lives, that's less due to aging than to years of eye abuse. If people lived right, there'd be little illness in the world; if they treated their eyes right, few would need glasses. Eye health depends largely on three things -- an adequate supply of eye- specific nutrients, a healthy set of retinal capillaries and a healthy set of eye muscles. The most important eye-specific nutrient is Vitamin A, which is an integral part of visual purple, the substance that turns the retina into a light-sensitive film. If Vitamin-A levels are low, vision deteriorates. (Night blindness... color blindness... complete blindness) Best food sources of Vitamin A are orange/yellow vegetables and fruit such as carrots, squash, sweet potatoes, apricots, mangoes and papaya. People who demand much of their eyes -- students, academics, secretaries, pilots -- are well advised to use Vitamin-A supplements. Vitamin A alone does not guarantee good eye health. Other structures that form part of the eye -- the vitreous body, the muscles that " operate " the eyes -- need other nutrients, among them Vitamin C, the B-vitamins and several trace minerals. A good and balanced diet of natural, unrefined and largely unprocessed food can be relied on to supply them. If there is one food that seems to have been designed by nature as the all-round food of eye nutrients, it is sunflower seeds. Do your eyes and yourself a favor by having sunflower seeds handy for in-between-meals snacks. There is one more nutrient which is of crucial importance for optimal eye performance, oxygen. When an ophthalmologist checks your eyes, one of the things (s)he is interested in is the condition of the tiny blood vessels called capillaries that criss-cross the retina. To have a good look at them, (s)he first puts drops in your eyes that keep the pupils from contracting when (s)he looks through them the retina with an ophthalmoscope (an instrument that permits a viewing of the retina through powerful magnifying glasses even while a bright light is beamed at it). Healthy capillaries are the alpha and the omega of an adequate supply of the nutrient oxygen. How does one ensure that the capillaries in the retina are in good shape? For one, through good nutrition -- a diet that helps keep the cardiovascular system clean; and then through adequate aerobic exercise. By and large, a diet that helps to keep the blood vessels, large or small, clean is a diet low in foods of animal origin but high in unrefined foods of plant origin, in particular whole grains and legumes. The kind of exercise the will put and keep your cardiovascular system in good shape is aerobic exercise -- exercise which involves large muscle groups and which makes you heart beat fast for an extended period of time -- such as brisk walking, jogging, or swimming. It may come as a surprise to you that a brisk walk of 45 minutes five times a week can make a big difference in the health of your eyes. But do not expect instant results; that is, expect a big improvement in your vision if you jog only for a week or two. It took years of physical inactivity for your cardiovascular system to deteriorate and it will take at least months for it to recover. But if you persevere, your heart and all the blood vessels in your body, the tiny capillaries that supply the retina with oxygen and other nutrients included, will be rehabilitated, a big step towards your goal of rehabilitating your eyes. Apart from general aerobic exercise that benefits your whole body, there are several sets of exercises that are specific for your eyes. A big part of the process of seeing depends on the muscles that " operate " the optical components of the eye. These muscles, like every muscle, need adequate exercise. If they don't get it, they deteriorate and perform their assigned functions badly or not at all. We are talking about three sets of muscles here. One set, the muscles of accommodation, changes the shape of the lens so that images entering the eye appear properly focused; a second set of muscles, which move the eyeballs in their sockets, extend our ability to look left or right, up or down beyond the limits of the head's movements; a third set, finally, enables the eye to adjust to different light conditions by changing the size of the pupil. In bright light, the pupil contracts so as to protect the interior of the eye from too much light; in dim light, by contrast, the pupil opens wide to let in as much light as possible. But there is more to this contracting and expanding of the of the pupil. As with the lens of a good camera, the smaller the aperture, the sharper the image that is viewed and the greater the depth of focus. That's why we can read better in bright light. In a natural setting such as that of the farmer, the sailor or the steppe nomad, all these muscles get adequate exercise naturally. Eyes focus now on near, now on faraway objects; eyeballs move frequently to cover the whole field of vision; and the pupils have to keep adjusting to varying conditions of light, from sunshine to shade and back, from indoor to out. It is in the unnatural setting of our urban existence that eyes get too little of the right and too much of the wrong kind of exercise. People sit reading for hours with eyes fixed in the unnatural near-focus position. When eyes look off into the distance, the muscles of accommodation are relaxed; when we look at something only inches away from our eyes, these same muscles have to strain to keep the eyes focused for the purpose. If we do this for hours on end, day after day, the muscles of accommodation fatigue and eventually lose their flexibility. Eyes then won't focus properly any more. That's when people who do a lot of reading find that " their arms aren't long enough for reading any more. " They need glasses. But every crutch weakens the structure it supports. With the glasses doing the muscles' work, the muscles deteriorate even further. Before long, stronger glasses are needed. A vicious cycle is initiated. Eye doctors tend to make things worse by encouraging their patients to wear their glasses continuously. One wonders whether they do this out of ignorance or because they want sell more glasses. The sensible thing to do would be to wear the glasses only when absolutely necessary; that is, to wear them when there is a task to be completed but eyes balk either because they are tired or because lighting is not adequate, and to take the glasses off the moment eyes can cope again either because they have had a chance to rest or because lighting is better. You'd be doing your eyes and yourself an ill service if you wore glasses when your eyes can cope without them. But don't expect your eye doctor to tell you so. Here are some of the things you can do both to prevent the deterioration of the ocular muscles and to rehabilitate them if the damage has already been done. When you do something that keeps your eyes focused at a fixed level for periods longer than just a few minutes -- whether it's solving a crossword puzzle, working at the computer or reading a book --look up frequently, vigorously blink a few times to promote the lubrication of your eyeballs and then slowly alternate between looking at a distant object for a few seconds and at a near-by one for a few seconds. Then close your eyes for perhaps half a minute to let them rest. Repeat the whole cycle two or three times. You'll be surprised how refreshed your eyes feel when you resume doing what you were doing. Now and then take a somewhat longer break. Get a bowl large enough to accommodate your face and fill it with clean, ice-cold water to within an inch of its rim. Having first taken a deep breath, dip your face in the cold water and keep it there for a slow count to ten. During that time, blink your eyelids slowly but vigorously. Repeat two or three times. The contact with the cold water stimulates blood circulation in your eyes. They will feel wonderfully refreshed after such an ice- water bath. You can do your eyes a favor by spending an occasional ten or fifteen minutes lying on a slant board, head down. Normally, your heart has to work against the pull of gravity to get the blood to your head. When you lie on the slant board, head down, the flow of blood to your head increases and all the organs lodged in hour head -- brain, ears, eyes -- benefit from the improved supply of oxygen and other nutrients that come in its wake. The following set of exercises can, if performed regularly, be counted on to rehabilitate out-of-shape accommodation muscles. Hold an extended index finger about four inches from the tip of your nose. Get your eyes to focus on that finger for two or three seconds. Then look up, pick an object as far from you as possible and get your eyes to focus on that objects for the same length of time. Repeat ten to fifteen times and then, having blinked vigorously a few times, close your eyes and keep them closed for ten to fifteen seconds. Repeat the whole procedure two or three times. For a variation of this exercise, cut a one-inch square out of black paper and glue it on your living room window at eye level. Stand facing that square, four to six inches away from it, and get your eyes to focus on it. Then look out past the square and get your eye to focus on a distant object. Then look back and forth between the black square and the distant object as you did with the finger in front of your nose. I perform this exercise in all sorts of places without anyone becoming aware of it. If I have to wait for a bus, I stand close to a light post or a power pole, pick an object somewhere far away and then proceed as with the raised finger or the black dot. To exercise the muscles that move my eyeballs in their sockets, I imagine myself looking at the face of a big clock. Without moving my head, I look up at the 12:00 and from there, still without moving my head, I slowly look my way around the face of that clock -- 1:00 o'clock, 2:00 o'clock, 3:00 o'clock, etc. -- till I get back to the 12:00. I do this, first in a clockwise and then in a counter-clockwise direction, four or five times. Then, as with the previous exercise, having blinked a few times, I close my eyes for perhaps half a minute to let them rest. Sunning is the term I use for the exercise which conditions the muscles that make the pupils expand or contract. To sun, I face a bright source of light -- the sky on a bright day, without looking directly at or into the sun, or a bright source of artificial light on cloudy days. I cup my hands over my eyes in such a way as to shut out all light for a few seconds and then I swivel them open and close them at intervals of perhaps two seconds, sure that my pupils will contract all the way when my hands swivel open, and that they will open wide when my hands swivel closed. After some fifteen repetitions, I pause for perhaps half a minute with my hands cupped over my eyes. I repeat the 15-rep cycle two or three times. I had my eyes checked by an oculist a few days ago. When she was done, she snapped at me in mock anger: " Get lost and don't come back for a long time. Not fair that someone as old and as ornery as you should have nearly perfect vision. " I am 72 years old. Few people, I am sure, have asked as much of their eyes as I have of mine. If they still serve me well, it is because I have treated them well. And I am confident that, unless I fail them, they will serve me well till far, far into old age. If you'd like to be able to say as much of your eyes when you get to be my age or older, all you have to do is treat them as well as I have been treating mine. Quote Link to comment Share on other sites More sharing options...
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