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Myopia is also known by the name of nearsightedness. It is one of the most common refractive disorders of the eye. Over the years, it has become more prevalent. According to a recent study conducted by the National Eye Institute (NEI), myopia has grown more prevalent from 25 percent in 1972 to around 40% percent in 2004 in United States.
The exact cause of the prevalence of this disorder in USA is not known. However, many doctors are of the opinion that eye fatigue due to overuse of computers can be the primary reason behind the spread of this disorder. It could also be affected by genetical links.
Myopia Symptoms And Signs:
It is time to take care of your eyes if you have difficulty in reading the sign boards on road or seeing objects from a distance. This could be a sign for myopia if you are able to see things clearly from a closer distance. There are several symptoms of myopia, including strain on eyes, headaches and squinting. If these signs don’t vanish after wearing lenses or spectacles, you must consult an ophthalmologist.
What are the factors that cause Myopia or Nearsightedness?
It occurs at a time when the eyeball of the patient is too long. The lens of the patient will be too long as compared to the focusing power of the cornea or the eye lens. This condition leads to the focusing of light rays at a point in front of the retina. The rays don’t focus directly on the retina’s surface. Myopia can also be caused if the lens of the eye is too curved. Myopia can also be caused due to a combination of factors. The problem may start from childhood. You are also at the risk of developing the problem if your parents have had the problem.
Myopia is not a rare disorder of the eye. People living with myopia have several options of its treatment. It can be rectified or corrected with the help of spectacles and contact lenses. It can also be corrected by refractive surgery. The kind of treatment to be chosen depends upon the degree of your myopia. You will be asked to wear lenses or spectacles for a prescribed amount of time, depending upon the degree of your disorder.
If you are suffering from myopia, the doctor will prescribe you to wear spectacles or lenses of a certain power that will be preceded by a minus (-) sign.
I have years coming from eyes if I use computer for half an hour time. Is this any symptoms of vision loss?
I am 26 year old. I have an eye problem since last year. I already checked to a doctor but my defectness is only minus 0.25 but I have some shortage of vision especially in dusk time. How can I correct my defectness.
I have floater s in my eyes these days they are disturbing when I see bright sky and my eye sight is -8 and -8.5 I had very small laser treatment for both of my eyes for filling weak areas ,can I use homeopathic eye pellets for floaters my doubt is do they harm my eye.
One of my friends had an eye problem two days back but didn't take seriously but now he was almost unable to see. So please provide an answer to my query.
My eyes are burn when I saw lights or screens frequently and also dry what will I do to reduce this?
I have red eyes over 3 days including body pain and what should I do to avoid farts unnecessary because I have a healthy diet I don't understand why does it happens?
What is amblyopia or lazy eye? Amblyopia is decreased vision in one or both eyes due to abnormal development of vision in infancy or childhood. In amblyopia, there may not be an obvious problem of the eye. Vision loss occurs because nerve pathways between the brain and the eye aren't properly stimulated. The brain, learns to see only blurry images with the amblyopic eye even when glasses are used. As a result, the brain favors one eye, usually due to poor vision in the other eye. Another word for amblyopia is 'lazy eye'. It is the leading cause of vision loss amongst children.
The major causes of Amblyopia are as follows:
- Eye Misalignment: The most basic reason for amblyopia is misalignment of the eyes. In case, both your eyes are not aimed in the same proportion or direction, the image from the affected eye is turned off by the brain. Only the better eye functions. Double vision is restricted. The persistence of this defect for a prolonged time, makes the eye lose connection with the brain's visual cortex. Amblyopia develops.
- Imbalanced error of refraction: If the refractive number of both the eyes is not the same, both eyes can't be in the center at the same time. Amblyopia happens when one eye stays out of the center since it is more myopic, farsighted, or astigmatic than the other. One eye becomes dominant. This results in the neglect of the unfocused eye, which neglects to associate with the mind. Treatment with glasses or contact lenses to adjust the refractive blunder of the eye is required.
- Cloudiness in the visual system: Any kind of obstruction or cloudiness in the normal functioning of the eye tissues can be another reason, which leads to amblyopia. Disorder of any kind which blocks a clear image from being focused is capable of blocking the formation of a clear image on your retina. This may lead to amblyopia. This is perhaps the most severe type of this disease.
How to cure amblyopia?
For treating amblyopia, a child must be compelled to utilize his affected, weaker eye. This can be done by correction of any disorder of the affected eye such as refractive error, problems in the retina, etc. The goal is to correct the amblyopic eye. The normal eye is usually covered up by a patch, so that only the affected eye can be used for vision. The patching up may continue for weeks, months or years until the best vision gets restored. The improving eye should be maintained well. Spectacles are also prescribed for correction of errors regarding refraction. Eye drops such as atropine are also used for blurring the vision of the good eye. Amblyopia makes you visually impaired. The earliest symptoms must be perceived and acted upon. If you wish to discuss about any specific problem, you can consult an Ophthalmologist.