Short-sighted

Short-sighted's disease overview

What is

myopia?

In normal people, the image reflected from the object after passing through the cornea and the lens will be converged in the retina. In the retina, the receptor cells will convert light signals into neurological signals and transmit to the brain through the optic nervous system to create images.

Nearsiles are a disease where those images do not converge in the retina but converge in front of the retina, so the nearsighted people can only see the nearby objects without being able to see the distant objects.

Causes of Short-sighted's disease

The cause of myopia includes:

Due to the long eye axis, the distance to the retina is long, the image creates falling in front of the retina without falling into the retina. Making the cornea too curved compared to the eyeball. ..

Some cases of myopia or genetic.

Symptoms of Short-sighted's disease

What is

What is heavy myopia?

Light myopia is called low -sighted nearsightedness, heavy myopia is called high -sized myopia. For people with high nearsightedness, there is a risk of developing glaucoma and cataracts compared to people with low or medium myopia.

In addition, people with nearsightedness can easily lead to retinal flaking complications. Patients need to check regularly to detect and treat early to avoid more severe complications.

Symptoms of myopia include:

The image of the distance is blurred, blurred, unknown; Just look close like reading newspapers, watching TV sit near. /Li>

People at risk for Short-sighted's disease

Prevention of Short-sighted's disease

Some measures prevention of myopia are recommended such as:

Study and work scientifically, give the eyes to rest after work. Protect your eyes from UV rays and sunlight by wearing glasses when it is sunny. Wearing full glasses when you have nearsightedness to avoid worse disease. The sitting position, not studying in a lack of light, tables and chairs in accordance with the standard. Recently, myopia is increasingly popular due to students using many technology appliances such as computers and phones. Therefore, to prevent myopia, children need to be limited to excessive use of technology.

Diagnostic measures for Short-sighted's disease

There are many methods to myopia treatment . Currently there are the main treatments that are:

Treatment with refractive surgery: done by reshaping cornea helps you reduce or do not need to wear glasses. The most common procedure is PrK (Laser will remove a layer of cornea tissue, making the cornea more flat and from there the light will converge on the retina) and Lasik (a thin flap created on the sense of the sensory surface. Mac, laser will remove some cells, after thin flap of the cornea is placed in the original position). The most common today to treat nearsightedness with simple advantages, widely applied and less complications. The glass will adjust the convergence image on the retina to help the eyes see more clearly. Currently, the glass market is very diverse, there are many types made from good materials, anti-glare, anti-UV rays suitable for the purpose of the user. K uses hard contact lenses at night to help adjust the shape of the cornea during sleep. After waking up, the cornea of the patient will have a new shape to help see clearly that day. This method helps to treat myopia temporarily, applied to young patients who have not been able to surgery.

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