health sectionhealth sectionThe "Star Wars" franchise impressed moviegoers with futuristic weaponry such as the lightsaber, now an icon of the films. What many don't know, however, is that the lightsaber was actually a modified version of a real-life "Graflex flashgun," which was a component of the flash apparatus of certain vintage cameras. Graflex devices can be converted into a Luxeon LED lighting tool to resemble the kind of lightsaber used in the movie.
The availability of a wide range of men’s eye glasses can spoil you for choice. However, making your selection from eye glasses in different frame shapes, sizes and colors can also confound you. Trying on individual pairs of glasses to find the right fit is time-consuming. If you have a round face, you can use it to help narrow your selection criteria. The shape of your face along with your eye color and skin tone will enable you to determine the type of glasses that suit you.
Rivers are essential in shaping landscapes, supporting aquatic life and supplying water to many communities. Extensive research is done in the area of river length measurement. The Nile River is credited as the world's longest, stretching approximately 4,135 miles across Egypt, North and South Sudan, and Ethiopia. In the United States, the Mississippi is the longest river at 3,870 miles. Measurements are made based on available topographic data and remote sensing imagery.
Buying glasses online requires you to provide the vendor with your measurements. You can generally obtain this information by looking at the inside of your frames. If that information is not provided, or has been scratched off, you can obtain the necessary measurements yourself. The bridge measurement is vital because it determines how the spectacles fit on your nose.
Anti-glare coating is added to eyeglass lenses to help improve the clarity and consistency of vision. Reflective glare can disturb vision when working on a computer monitor or watching television. It can also disrupt vision during nighttime driving, which can lead to accidents. Common symptoms of reflective glare include a burning sensation in the eyes and mild headaches.
Anti-reflective coatings are applied to eyewear lenses to block or reduce external and internal reflective light. This coating reduces glare so your eyes are are more visible behind your lenses. Coated lenses improve night vision and increase user comfort when viewing a computer screen. An anti-reflective coating adds to the value of your eyewear; however, this coating can present some problems for the wearer.
It is normal for your eyes to get tired while staring at your computer screen for long periods of time. Special lenses help alleviate the strain and headaches caused by computer use and glare. There is a difference between anti-glare glasses and computer glasses but the difference is easy to understand once you know a few simple details.
Temple length is one of three important measurements required to order eyeglass frames that fit properly. Temple length applies to the part of the frame that rests on your ears. The other two measurements are bridge size and lens size. All three are measured in millimeters. To properly measure your eyeglass temples, you will need a millimeter ruler, also called a PD stick.
It can be an "eyesore" to look at or through glasses with a nonglare coating that is peeling. A peeling coat not only makes your glasses look like they haven't been cleaned, but it can interrupt your ability to see through them. A peeling or nonpeeling, nonglare coat can be removed from plastic or polycarbonate lenses. Glass lenses are especially sensitive, so a nonglare coat should only be removed from these types of lenses by a professional optometrist.
Getting the right eyeglasses means more than having an accurate prescription for the lenses. The fit is important as well, ensuring not only that your glasses feel comfortable, but that your eyes are looking through the lenses properly. Measuring both the frames and the lenses is essential to getting the perfect fit from your eyeglasses. There are a number of different measurements to take into consideration, including the lens height and width, arm length and the bridge length. These measurements are done in millimeters.
There are several options available when you purchase new eyeglasses. Lenses can be polarized or treated with a variety of coatings. Even the material the lenses are made from can be chosen. Anti-reflective or anti-glare treatment, is self-explanatory. It refers to a particular way to treat lenses that offers numerous benefits for the user.
When you cannot get to your eye care practitioner for an eye glass repair -- and your glasses are crooked -- you can straighten your frames -- but you have to use caution. Most optical retail offices adjust glasses for no charge, or a small fee: But for those times when the office is closed or inconvenient, you can fix your frames yourself. Be careful, though. If you break the frame adjusting it yourself, you might void or consume the balance of your frame warranty.
Eyeglasses are a saving grace for those with poor eyesight or other vision problems. Modern eyeglasses are light, stylish and highly resistant to bending and breakage. However, they are not resistant to the oil and dirt that can collect over time. Oils from the face may rub onto the nose bridge and lenses, creating a trap for floating dust and dirt particles. Restoring your pair of eyeglasses to pristine condition is simple and requires only a few household items.
Glasses are a common solution for people who suffer from problems with farsightedness or nearsightedness. Glasses should be changed when vision problems begin to include a need for corrections of different distances. Bifocals or trifocals are the common solution. Some people dislike the bifocal look. They may elect to wear two sets of glasses, one for near and one for far. A better option for those wishing to avoid the traditional bifocal look is to rely on progressive lenses, which present a more refined appearance while correcting multiple vision problems.
Glass eyes are precision-cast, artificial eyes, designed for insertion into an empty eye socket, after an injured eye is removed surgically. After losing an eye, a new patient often becomes depressed and self-conscious. By keeping your glass eye clean and in good repair, while learning to focus on your personal assets, the reward is years of trouble-free use and confidence.
Buffing wheel machines are commonly used in manufacturing, as well as in school design and technology departments. The spinning buffing wheel is used to polish and remove imperfections from metal products. Because of the rotation speed of the buffing wheel, safety is paramount, and guarding requirements are stipulated by the Occupational Safety and Health Administration. These guarding requirements must be adhered to whenever using a buffing wheel machine.
Fish line on eyeglasses is actually a thin piece of clear nylon string called eye wire. The nylon line holds lenses into a semi-rimless, also called rimless, eyeglass frame. The eye wire fits into a thin groove on the edge of the lens. Over time, the nylon becomes discolored or brittle and needs to be replaced. You can remove the nylon eye wire on rimless eyeglass frames in a few simple steps.
Polished crystal was used as early as 700 B.C. by the Assyrians to magnify and clarify objects, and ancient Egyptian and Romans used similar devices to achieve the same effect. These devices are the earliest known forms of glasses. More modern forms of glasses are used today to correct vision problems and enhance the well-being of people around the world.
The first signs of vision degradation are quite noticeable for many people. Eyesight problems often begin in early childhood, with many children finding it increasingly difficult to read the blackboard from a distance. Fortunately, vision issues can be addressed through the use of corrective lenses. Prescription eyeglasses can make everyday life far easier for those who have problems with their vision -- and obtaining them usually requires no more than a trip to the eye doctor.
Tiny screws hold the front piece and earpiece together on a pair of glasses. The screws work loose and may even fall out. When this happens, the glasses frame falls apart. The screws work like any other screw, so they are easy to tighten --- that is, if you can find a tiny screw driver and can see to tighten the screw without your glasses. Most pharmacies have an inexpensive optical or glasses repair kit. The kit contains a tiny screwdriver, replacement screws and a magnifying glass,
Eye glass frames that slip can be adjusted with a few simple tools. Learn how to adjust your eye glass frames with the help of a board-certified optometrist in this free video.
An eye glass cloth is used to clean your glasses, but caring for the cloth is also essential if it is to remain effective. Discover how to care for a microfiber cloth with the help of a board-certified optometrist in this free video.
Eyeglasses are more than just a medical device to help you see clearly; there are so many frame and lens styles and options available today that eyeglasses are considered by many to be a fashion statement. Choosing a pair that frames your face and flatters your features is essential to looking polished and professional. Consider factors such as face shape, comfort and frame style to help you choose the perfect frames for you.
It can be annoying to have your eyeglasses fall off your face, not to mention dangerous in certain situations such as driving. Crooked or unbalanced eyeglasses can affect eyesight, especially if the eyeglasses are bifocals or trifocals. One solution: take your eyeglasses to an optometrist to get your eye pads adjusted. Another is to make your own adjustments with a few simple techniques.
Catalytic converters are used on automobiles to control exhaust emissions. Inside each converter are catalysts such as platinum, rhodium and palladium, which are used because of their ability to resist heat. These precious metals make converters valuable for recycling. Converters come in various sizes and shapes and contain different amounts of platinum, rhodium or palladium.
Eyeglasses are an expensive investment that, for many, need to last a few years before replacement. Most lenses are created out of durable polycarbonate or plastic materials which tend to resist damage. However,scratches on your lenses can still develop over time, which can reduce visibility. Luckily, there are several techniques for helping to remove these fine scratches from your eyeglass lenses.
The easiest way to get eyeglasses in northern Kentucky for people who are homeless is to work with an existing organization that provides free eyeglasses. Two organization in Kentucky presently provide eyeglasses to needy residents. The Lions Club collects and donates glasses via county health departments. New Eyes for the Needy eyeglasses and vision care through Kentucky Homeplace are two other organizations. However, if neither of these options will meet your needs you can start your own drive to collect and distribute used eyeglasses.
Presbyopia commonly affects adults around the age of 40, whether or not they previously experienced eyesight problems. According to All About Vision, presbyopia is an age-related change in the eye that causes a person trouble focusing on close-up reading or work. Both bifocals and progressive eye glasses help the symptoms of presbyopia, but there are differences between the two type of lenses.
Glasses are prescription lenses worn by those affected with poor vision to help them see more clearly. Available by prescription from an optometrist, the lenses are personalized for an individual's sight requirements.
A scleral buckle looks similar to a thick rubber band that is roughly the same diameter of the human eyeball. It is applied around the eyeball during the repair of a retinal detachment. Application of a scleral buckle to the eye is an important part of repairing a retinal detachment. However, it can create vision problems, such as blurry distance vision or double vision. Glasses can help these problems in many cases.
No one place is considered best for buying eyeglasses. Too much depends on the quality of the glass, the lab filling the prescription and the eye care specialist. Optometrists and ophthalmologists perform vision care. A Doctor of Optometry prescribes eye wear and medication to correct small eye problems and detect eye diseases. An ophthalmologist is a medical doctor specializing in treating all aspects of eye care. No matter where you purchase eyeglasses, following up for proper fit is necessary.
With the rising popularity of clip-on sunglasses, many eyeglass frames now come equipped with magnets for using with magnetic clip-on sunglasses. These magnetic pieces are sometimes at the bridge of the frames, but most often they're at the end pieces, adding an extra bump where usually the metal curves smoothly. With this extra piece in the way, how do you manipulate the arms if they get out of whack? Luckily, adjusting the magnetic arms on eyeglasses is almost as easy as adjusting standard eyeglass frames.
You can have fun trying on glasses in search of suitable frames that flatter your face. Glasses are costly, so if wearing glasses is a necessity, they should fit well and look good. Do your homework before shopping by evaluating styles at the virtual Try-On Tool at Pearle Vision, or take the Frame Personality Survey at LensCrafters to "see what your interests and lifestyle reveal about the best eyewear looks for you." When you shop, take a copy of your prescription and ask about promotions and pricing before looking at selections.
Eyeglasses first appeared in Pisa, Italy in the late 13th century. They were made from two convex glass or crystal stones. Each stone was surrounded by a frame with a handle. The frames were connected together by placing a rivet through the ends of the handles. Since that time, many types and styles of eyeglasses have been developed. Each pair has an interesting story, and each pair provides a link to a period in history.
Eyeglasses range in price depending on the complexity of the prescription, the type of frames chosen, and where the glasses are purchased. Different add-on features also increase the price of the eyewear.
Eye glasses can be expensive, and if your plastic lenses are scratched, it affects your vision and ability to function. If the lenses are heavily scratched you may have to visit your eye care professional to get them replaced. However, there are many methods that you can try to remove the scratches yourself or lessen their appearance. Be gentle with your lenses at all times to prevent scratches to begin with, and ensure any scratch removal technique you use does not do any damage to your glasses.
Eyeglass are one form of treatment for individuals with nearsightedness, or myopia. The American Optometric Association says that myopia happens when the cornea is too curved or the eyeball is too long. Eyeglasses refract the light coming into the eye to correct the vision, making long distance objects sharp and clear again.
Nearsightedness means that a person can see well up close, but they see blurry at a distance. The degree of nearsightedness, and whether or not the person is wearing his glasses, effects which computer would work the best.
A "glass eye," also known as an ocular prosthesis, is an artificial eye used when a person has had an eye surgically removed. During surgical removal, a ball implant is placed in the eye socket and the patient then can place a prosthesis on top of it. While ocular prostheses have been made of glass in the past, today 99 percent are made of acrylic plastic because acrylic resists scratches and breakage. Glass is used only as an attempt to cure recurring conjunctivitis or when a person is allergic to acrylic.
Eye glasses can be an integral part of a person's life. Some people can function without eye glasses, but they function better with them. Unfortunately, many people require eye glasses to function at all. If someone finds himself without an appropriate pair of eye glasses and with no means to afford a new pair, it is comforting to know that there are patient assistance programs available. These programs include, but are not limited to, Lions Club International, VOSH and Vision USA.
People purchase lead crystal because it appears elegant and dazzling to the eye compared to ordinary glass. However, lead can also make up as much as 30 percent of the lead crystal's weight. Using lead crystal to store liquid like wine and other alcohol means contamination as lead leaches into the standing liquid. You can learn to distinguish between lead crystal and glass or select alternatives to lead crystal, such as titanium and magnesium crystal. If you drink out of lead crystal glasses, drink it right away rather than allowinh the liquid to sit--the longer the liquid sits, the more…
Safety goggles are used in a variety of work environments, from woodworking shops to construction sites to laboratories. While workplace safety goggles all have a similar basic design, there are variations in the details. Not all safety goggles are designed with eyeglass wearers in mind, making it important to choose goggles that are specifically "eyeglass-friendly."
Safety glasses are available over-the-counter as non-prescription or can be specially made at an eye doctor or optical retail office. Some companies require specific types of eye safety glasses and OSHA (Occupational Safety and Health Administration) regulates safety glass requirements for the workplace.
Eyeglass lenses are determined by prescriptions which are put together by an eye doctor, based upon what type of vision deficiency you may have and what types of lenses can help you see properly. There are a number of ways to tell what magnification power your eyeglass lenses are, based on the prescribed information.
Anti-glare coating on your eyeglasses is made using the same type of technology that's used on camera lenses and even microscopes. Many people feel that it improves their vision and makes their eyeglasses look better; however, if you've tried out anti-glare coating and decided it's not for you, you can have the coating removed. Do not try to remove it yourself; you may damage the lenses.
Polycarbonate lenses are the most shatter-resistant lenses available for eye glasses and are the best choice for safety lenses. Because of the way polycarbonate lenses are made and the way they bend light into the eye, the lenses make things look different and may seem distorted if you are used to glass or plastic lenses.
Wouldn't it be wonderful to see without glasses? You could avoid dealing with glasses that slip down your nose or fall off when you bend over. You could get rid of your contacts and all the solutions that you need to maintain them. But lasik surgery is too expensive for many people's budgets. Instead, you can do exercises that will improve your vision and could help you get rid of those glasses.
No matter if you have new or old eyeglasses, they are bound to need some adjusting from time to time. The more frequently you put them on and take them off, the more often you can expect to adjust them so they don't slip down your nose. Whether you have plastic frames or metal frames, expensive designer frames, or cheap drugstore sunglasses you converted for your prescription, the same slipping problems prevail. With a tiny eyeglass screwdriver and some gentle twists, you can have them adjusted on your face like the day you first wore them.
A prescription written for eyeglasses is different from a prescription for contact lenses due to the inherent nature of contact lenses.
Spectacles require a measurement, also called a fitting, to ensure that your prescription fits in the frame and also to make sure the frame fits you properly. Care must be taken when measuring for eye glasses.
Whether they are your first prescription or just a new pair, eye glasses require some adjustment time. Frames come in many sizes and shapes and fit everyone differently. How they fit you and how your lenses fit in the frame will affect how long you take to get used to your new glasses. If you've had a significant change in prescription or changed to a new style of lenses, you will have an adjustment period. Knowing what to expect can make your adjustment to new glasses easier.
Anti-reflective (AR) coatings are applied to spectacle lenses to help reduce glare from bright lights and overhead fluorescent lights. They are especially helpful for driving at night and for cutting down the glare from oncoming traffic. The coating can peel off or become damaged if not cared for correctly, but there are simple steps you can take to make sure you are cleaning your anti-reflective lenses properly.
Whether you are shopping for prescription eyeglasses or reading glasses, the first step in filling your eyeglass prescription is choosing an eyeglass frame. With many styles and types from which to choose, finding the best eyeglass frame that works with your prescription and complements your personal style and face can be a chore. Luckily, with a few tips, you can save hours of trying on frames that do not meet your standards and find the best eyeglass frame that complements your eyes and face.
Spectacle lenses can be coated with ant-reflective coatings in order to cut down on glare. They also sometimes have scratch coatings to help resist scratches. Because the coatings are applied to the surface of the lens and are not part of the lens, the coating eventually might peel off. If this happens to your glasses, there are steps you can take to remove the coatings from your lenses. This method only works on plastic lenses. Do not use hydrofluoric acid on glass lenses.
3-D glasses have become popular with the proliferation of movies designed for viewing in 3-D. 3-D glasses pose no serious danger of harm and should be considered perfectly safe.
Even as laser corrective surgery gains popularity, eyeglasses remain are a powerful way to change your appearance. They lend symmetry to your face and with the correct shape and size can highlight your best features.
Eyeglasses correct many different types of refractive errors, or sight problems, including nearsightedness, farsightedness or astigmatism. Trying to understand the numbers on an eyeglass prescription requires understanding the measurements optometrists use when fitting you for corrective lenses.
Edging the lenses back into your eyeglasses can be tricky. Frames can be made of metal or plastic and each type of material requires a different way of inserting the lenses. Using the proper tools and methods helps make edging lenses into frames easier.
The construction of glass eyes requires disciplined craftspeople who are well-versed not only in modern medical technology but also in cosmetic science and the art of glass blowing. All glass eye artisans are trained for years before they can serve patients.
Glass eyes are an acceptable option for anyone who has suffered an injury, has undergone removal surgery or lost an eye. There are many options and prosthetics available on the market from stock glass eyes to hand-crafted replacement glass eyes. Cost changes from one manufacturer to the next. However, glass eyes do present some problems if not cared for properly. They must be fitted correctly and cleansed to ensure optimum appearance. Price must also be taken into consideration for anyone shopping for a prosthetic.
Eyeglasses are needed to help people see better. If you have prescription glasses, you may need to wear them all the time or only for tasks such as reading, driving and watching movies. Spectacles usually consist of a pair of lenses that correct vision and a frame that holds the lenses together and helps them to sit in front of your eyes.
Optometrists tests patients' eyes to detect vision problems and ensure that a patient has normal depth and color perception. A person's ability to see is called visual acuity. Visual acuity is classified as a fraction, with normal vision being 20/20. This means that a person with 20/20 vision is able to see letters or symbols clearly on an optometrist's reading chart from a distance of twenty feet without having to move closer to or further away from the chart. A person with myopia, or short sightedness, might be classified as 12/20, meaning that she has to move within twelve feet…
We see the world through our eyes, and if we wear eyeglasses, they must be cleaned regularly. If you purchase cleaners for your eyeglasses, these eyeglass cleaner recipes may save you a bundle as you find simple ingredients to keep your lenses to the world clean. These non-toxic and earth-friendly ingredients are also safe near your eyes.
Knowing whether you need eyeglasses can be challenging if you do not know the signs to look for. If you have trouble seeing or difficulty focusing, it may be time to consider whether you need eyeglasses. But there are more subtle signs you may not know about that can help let you know if you need eyeglasses. Once you understand these and visit an optometrist to be diagnosed and order your glasses, you can be more comfortable reading, watching television and driving.
Nearsightedness, or myopia, is a condition wherein the eyes can clearly see objects that are close, but can't focus clearly on objects that are at a distance. The vast majority of vision correction done in the United States is for people with myopia. While corrective surgery such as Lasik and contact lenses are growing in popularity, eye glasses are still the most popular treatment of choice.
The different types of eyeglasses frames include metal frames, optical plastic, shell frames, full-rim frames, semi-rimless frames and three-piece mounts. Find frames that fit different face shapes with information from a practicing optometrist in this free video on eye health.
Ordering prescription eye glasses online has become common. Your local eye glass provider may not have the style that you want or you may find a better price online. Whatever your reason, don't be afraid to order eye glasses on line. Bet you can't stop with just one!
So you want to learn how to repair your eye-glasses. A good pair of prescription glasses costs well over $300, and in today's economy, such a high-priced item has to be able to last. Glasses are generally made of thin metal or plastic, and given the wear and tear these things go through, they will break long before the prescription changes.
