All about the Nearsighted Glasses

Posted in nearsighted | No Comments » December 30th, 2011

 Nearsightedness is a condition   where the eyes could see objects that are close clearly but could not focus on objects that are far. The majority of vision correction in the US is for those who are nearsighted or those with myopia. The most popular treatment for this eye condition is still the eye glasses.

Nearsighted glasses include single-vision eye glasses that provide the right levels of correction for vision. Older people with myopia may require bifocal lenses to read or to do work like needlework or crafts. There are   also others who might need trifocal or even multifocal lenses to see things clearly through a range of distances.

Some may only require ‘driving glasses’ when driving, which are low-strength eye glasses. Nearsightedness could also make the eyes sensitive to sunlight, thus they need sunglasses that let them see clearly even on sunny and bright days. For mildly nearsighted persons, reading glasses may be the only vision correction they need. Reading glasses are rated through their magnification strength and could be purchased over the counter without the need for a prescription. There are many types of nearsighted glasses to choose from those suits your needs, lifestyle and the shape of the face as well.

Kinds of Nearsighted Glasses

Posted in nearsighted | No Comments » December 30th, 2011

If things at a distance appear blurred or you could not see them, then you could be suffering from nearsightedness, also known as myopia. In nearsighted glasses, there are three different kinds of eyeglasses to correct this condition.  Nearsighted glasses have different lenses that help in minimizing myopia.

Plastic optical lenses are made of a material known as CR-39, which is a type of resin. In general, this is recommended for those with mild to moderate nearsightedness correction. The prescription is approximately 2.00 diopters or less. Polycarbonate lenses are more shatter-resistant and lighter compared to plastic lenses. Sometimes they are also called ‘safety lenses’ since they are more resistant to impact. Since they are lighter and thinner, they work well for a moderate prescription, normally in the power range of 2.00 diopters or above. This type of nearsighted glasses is recommended for children since they are active and are likely to need safety kind of lenses.

High-index lenses are highly recommended for extreme nearsightedness. These lenses provide various indexes of refractions. The higher the number, the lighter and thinner the lens will be. Vision changes occur around the age of forty and one could become presbyopic, a condition affecting both near and far vision. Nearsighted people may need bifocals to read.

Awareness of Nearsighted Symptoms

Posted in nearsighted | No Comments » December 29th, 2011

Nearsightedness, also known as myopia is caused by the natural change in the shape of the eyeball. The eyeball turns oval instead of round, which happens commonly during childhood. This condition could be corrected with the use of eyeglasses, contacts and surgery.

Nearsighted symptoms that you should be aware of include eyestrain, headaches, fatigue when playing sports, driving or looking more than a few feet away and squinting. The most common symptom in children is being unable to see the board at school.

It is vital to know nearsighted symptoms particularly in children so that this could be addressed to immediately to prevent the condition from getting worse. The primary symptoms of myopia are seeing distant objects appearing blurred, out of focus and indistinct. Moreover, a person who is nearsighted could not see posters or signs from a distance. There are also instances when it is also difficult to see clearly the face of the person across the table. Nearsightedness is a condition that affects a large percentage of people throughout the world. Aside from using eyeglasses, contact lenses or surgery to correct or to improve this condition, there are also natural methods and   exercises that one can do to cure this condition.

Curing Nearsighted Vision

Posted in nearsighted | No Comments » December 27th, 2011

 Lasik is one of the ways of curing a nearsighted vision. Nevertheless, is it a costly and risky procedure that is not guaranteed to work. Moreover, its long term effects are still unknown.  For people who are nearsighted, if Lasik is not an option, there are some eye exercises that could help in curing nearsightedness.

The idea of doing eye exercises is the same as doing other exercise. Working out the eyes is the perfect way to strengthen them.  Keep in   mind that your eyes are like muscles, it has to be used efficiently to be more effective. One easy eye exercise is the ‘shape exercise’. Focus on an object with a square is rectangular shape.  Follow the objects outline for 45 seconds or longer. Notice how the eyes begin to feel better right away. You could almost see the text on the screen much better by doing this simple exercise. If you do this exercise daily, you could restore your vision naturally.

Eye relaxation methods could rejuvenate the eyes and help you reach your goals of curing nearsightedness fast. Palming is most probably the most effective and common way of making the eyes feels better. Try to cover your right eye with your hand. Do not apply pressure to the eye but just cover it for around 20 seconds. Do the same to the left eye. You can feel the warmth of your hand relaxing the eyes. You can do this everyday, especially if your eyes are strained from computer or TV viewing.

How Nearsighted Glasses Work

Posted in nearsighted | No Comments » December 26th, 2011

 The same as a camera, your eye has a lens, automatic and exposure meter focus.  The main parts of the eye are the iris, cornea, retina and lens. When it comes to nearsightedness, nearsighted glasses work by correcting the problem of the eyeball that is too long to focus on faraway objects projected on the retina. The glasses provide a concave lens that bends the rays outward, normalizing the eyeball.

Understanding how nearsighted glasses work to correct vision will could help you. Eyeglasses lenses are curved glass pieces.  The shape of the lens bends the right rays the moment they approach the eye. This aids the rays to focus on the retina instead of focusing it in front or behind it. Concave lenses are use for nearsighted people.

If   you are wearing eye glasses or contact lenses for your nearsighted condition, then you are in good company. Almost 160 million people in the US alone wear corrective lenses such as nearsighted glasses to improve their vision. From this statistic, it appears that perfect vision is rare. Understanding how nearsighted glasses work will make you appreciate it more. In addition to that, you will also have a better idea on how to care and maintain them.

Concave Nearsighted Lens

Posted in nearsighted | No Comments » December 24th, 2011

 The lens for a nearsighted person is a concave lens. Nearsightedness happens because of the excessive light ray’s convergence by the eye lens. This could be corrected by a diverging lens or concave lens. In nearsightedness or myopia, the eyeball is  longer than it should be for  ideal vision. The errors could lead to focus of image in the wrong place, which is in the back of the retina. A concave nearsighted lens bends an incoming light so the focus hits the retina.

Concave lenses can also correct errors in systems of lenses designed to focus light on a certain location. By adding lenses to a system, engineers could change the area where the rays of light end up by bending the light outward or inward.

In the concave mirror, the light reflects off various points on the glass means that rays will bounce to the center. This means that if the image reflected is far enough, the light that comes from the top of the object is far enough and the mirror will flip the image over. You can check this out by looking on the concave side of the spoon. If you are far from the spoon, your image is upside-down but if you move closer, your image will be right-side up.

Nearsighted Glasses Option

Posted in nearsighted | No Comments » December 23rd, 2011

 When   you have myopia, one of the cures would be wearing nearsighted glasses. These days, glasses are not just a tool to help people see clearly but are also a fashion statement. When choosing nearsighted glasses, there are several things that you should take into consideration.

For a round face, choose symmetric frames without odd angles,   with lines in the same proportion in length and width. Choose bridge that is either clear or lightly colored, to give the illusion of wider eyes.   For an oval face, choose eyeglasses frames that are walnut-shaped. This will enhance the look of the face.  There are some people with oblong face that is longer in proportion   than   it is wide. Look for frames with the same depth from top to bottom.

For a square face with very pronounced jaw line and wider forehead, try looking for frames that are narrower or wider than they are deep so that the face will appear less wide. Thinner shaped and oval lenses could also balance out this face type. A diamond-shaped face is great with just about any frame style. Nevertheless, rimless frames and cat-eye frames compliment a diamond-shape face nicely.  The frame color is also important since it could accentuate one’s natural features.

Nearsighted vs. Farsighted

Posted in nearsighted | No Comments » December 20th, 2011

 Being nearsighted is different from being farsighted. Nearsightedness is known as myopia while farsightedness is called hyperopia. Nearsighted vs. Farsighted are eye problems that affect millions of people around the world.

A person who is nearsighted sees distant images in a blur since the image is focused in the front of the retina, caused by the eye being too long. A person who is farsighted sees images that are nearby are blurred because the image is focused behind the retina, caused by the eye being too short or a flat cornea. There are times when vision problems are not apparent, particularly in children. Nevertheless, a person struggling with nearsightedness or farsightedness, it could affect all aspects of his or her life.

Driving is not a problem with farsighted people since they could see signs along the highway easily. They have no trouble ordering at a fast food restaurant since they could easily see the menu up on the wall behind the counter. On the other hand, farsighted people find it difficult to read a printed map and will have a hard time reading the menu handed to them on a restaurant.  Nearsighted people have no problems opening a menu books and reading the choices and could read a map easily. On the other hand, they could may not see clearly the person across the table, or have difficulty reading road signs while driving.

 

Alternative Nearsighted Cure

Posted in nearsighted | No Comments » December 20th, 2011

 Myopia or nearsightedness occurs when the light coming form your eye is focused in front of the retina. A normal eye has the light going into the retina. This is how the brain receives message of what things are like.  Aside from eyeglasses, contact lenses and surgeries, you can also opt for an alternative nearsighted cure.

The main step to curing nearsightedness is relaxing your eye muscles so they will not stay locked up. Such as elastic if you let goo will return to its original shape. This will however take time you should be patient for this to happen. First thing that you should do is to take off your glasses.

The eye, just like any sensory input, depends on change. It could not see the same thing for about two to four seconds before the image starts to fade. The problem is that people who are unable to see well will tend to lock on a point a force to see it and keep the same image on the retina or in short, they stare. Consider looking without moving the eye and head at a point. After ample time, you will notice that the vision blurs and your eyes hurt and feel uncomfortable. Try to look around a bit, relax and look at the point once more and you will see it much clearly.

Understand your Nearsighted Prescription

Posted in nearsighted | No Comments » December 19th, 2011

 When you check out your nearsighted prescription, you will notice numbers listed under headings OS and OD. These are Latin abbreviations. OS or oculus sinister means your left eye and OD or oculus dextrus means the right eye. On occasion, you will see an OU notification, meaning something that involves both the eyes.

A minus sign means you are nearsighted and these numbers represent diopters. If your prescription reads -1.00, this means you have a diopter of nearsightedness. If it is -4.25, this means you have four and ¼ diopters and requires thicker or stronger lenses. A lot of people think that a +1.75 is required when buying over-the-counter reading glasses. However, it takes a bit of algebra to figure out the total power needed for single vision reading eyeglasses.

More abbreviations you have to know in order to understand your nearsighted prescription better includes SVD, SVN, and Sphere, Cylinder, PD, axis and prism. SVD means single vision distance or glasses that are for distance use only; SVN is single vision near or for reading only. Sphere is spherical power that has the same power in all meridians, cylinder power that corrects astigmatism and represents the difference in the greatest eye power and the weakest eye power, normally separated by 90 degrees. Axis indicates an angle between the two meridians of astigmatism, PD is the measurement vital in designing glasses that are comfortable to wear and optically good. Prism is often prescribed to displace an image in a certain direction for those with cross-eyes or other eye muscle disorders.

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