Pros and cons of the Glasses by Meetoot
Many times when we are sick we must go to the doctor to prescribe drugs to relieve discomfort and in some cases use elements, such as the placement of a cast to consolidate a bone due to a fracture. Likewise, if we suffer from vision problems, they recommend us to wear glasses , since thousands of years ago they allowed us to treat disturbances in the eye . If we go back to the times of the Mayan, Egyptian, Chinese and Greek civilizations, we will find incredible achievements to improve the vision because the greatest scholars never gave up on inventions.
Today glasses are not made of rudimentary materials, on the contrary, they can be found in practically different shapes, materials , colors and designs. They are almost limitless and are currently the world's most important vision aid, clearly over time they have become a popular fashion accessory.
Maybe you suppose that if they are used in the right way they do not incur consequences, or maybe they do? Millions of people use them, so we must know in the next article the advantages and disadvantages of wearing glasses.
Common vision problems
If you suffer from blurred vision at certain times of the day, we inform you that it is the most common symptom of refractive errors . Other symptoms that may include double vision, cloudy vision, glaring light, squinting to see, or some headaches with eyestrain. If this is your case or that of an acquaintance, it is essential to Sunwear glasses .
These vision problems can be nearsightedness (myopia), hyperopia, astigmatism, and presbyopia. If you have heard about refractive errors you should know that they occur when the shape of the eye prevents light from focusing directly on the retina . In this sense, a serious blurring of the eyeball originates, changes in the shape of the cornea or even aging of the lens are responsible for these refractive errors and most people can have one or more of these diseases.
For you to better understand the cornea and lens, they deflect (that is, they refract) the incoming light rays to be able to focus precisely on the retina at the back of our eyes, this phenomenon occurs when light changes its direction by passing through a object to another . Vision occurs when light rays are refracted as they pass through the cornea and lens and it is the retina that transforms light into electrical impulses that travel to the brain, once there they are interpreted and converted into the images we see. Incredible right?
The most common types of refractive disturbances are myopia, hyperopia, astigmatism and presbyopia. Myopia is perhaps the most common, it is a disorder in which close objects can be seen clearly but distant objects are blurred . It happens that with myopia the light is focused just in front of the retina instead of on the retina.
The other case is farsightedness where you may see distant objects more clearly than close objects. Those who experience farsightedness can do it in different ways, some may not perceive any problem with their vision especially if they are young. On the other hand, people with considerable hyperopia can observe blurred objects at any distance, either up close or far.
While astigmatism is a disorder in which the eye cannot focus light evenly on the retina , the tissue is sensitive to light just below the eye and this can cause images to appear blurry or elongated.
Finally we have presbyopia, which is an age-related condition because the ability to focus closely becomes weaker. As the eye ages, the lens can no longer change enough to allow this organ to focus on nearby objects with the usual clarity. This condition affects most adults over 35 years of age and the other problems affect both children and adults. If a person has parents who suffer from some of these errors mentioned, they have the possibility of inheriting them.
What should I do if I need to wear glasses?
If you consider that you suffer from some of the symptoms presented, you should go to an eye doctor to diagnose if you suffer from refractive errors through a complete eye examination in which the pupils are dilated. Many times we go if we have discomfort or blurred vision without knowing that we do not see as clearly as we should and we need to wear glasses .
First, to obtain the prescription, the visual health professional must do the exam and inquire about the problems you get, these can be: redness, fatigue and visual discomfort . He will also ask questions about any history of eye problems, if you have worn glasses or contact lenses before and if you have, you should tell him about your experience .
In the same way, it is important to have information about family history of eye conditions or diseases , so you will know if it is hereditary, in the same way the specialist will want to know if there are patients with cataracts, glaucoma or ocular degeneration in your family. You will even have to disclose if you were born prematurely, had an accident, or have a chronic illness .
In case you are under medical treatment for allergies or a special drug you have to give the name, if you had lenses of another type do not forget to take them to your exam so that they review the formula.
The next thing to do is the visual test in which the muscles of the eye will be examined , visual acuity by looking at a chart with letters written in different sizes, visual acuity closely with a book that you must read, the refraction test in which the refractive is seen in the upper part of the eye and tests of lenses that fit so that you can see well knowing the distance.
After the general examination, the specialist who attends you will explain how your visual health is and if it is necessary to use correctors because you suffer from any special condition, as well as necessary recommendations that you must take into account. The prescription includes the prescription, base curve and the diameter of the glasses.
The graduation is the certain amount of optical correction you need to see correctly, in case you hear the word diopter in your office, do not be scared because this is the measure with which the refractive power that your glasses will have is estimated , or in other words its power.
In this way, if you have myopia, the legal regulations establish that a driver must have an acuity similar to or greater than 0.5 for driving . But when we talk about our daily life, in many cases visual complications are not perceived until you reach more than 1 diopter. It should be clear from how many diopters it is necessary for you to wear the glasses, it will be marked according to your needs and the work that you usually do in your day-to-day life.