For refractive error The refractive error?

For refractive error

The refractive error?

In a normal eye, light is refracted through the cornea and crystalline lens, an image of an object that is seen gathered on the retina

Create.

And to say it's this appointed time, and different when an abnormality for some reason this refraction occurs, and distorted or blurred.

It is called this refractive error, there is a myopia * raw * * astigmatism presbyopia four.

Symptoms and causes of refractive error myopia, treatment

State visible only object is blurred is myopia for connecting the above just before the light of the retina. The causes of myopia, the focus before the axis of the eye is longer with the growth Manbaku tied, the shape of the eye can be normally of, adjusting the thickness of the lens

There are two that cause the activity is abnormal. Singing voice myopia result tension increases seen so much the place Moyanchegun to adjust the place of the lens is close, causing convulsions, has become a state that can not be seen well on distant objects. It was allowed to ease the tension of this Moyanchegun to recover if Kurere be. The treatment, in the early time of the hydroxide myopia, or to ease the tension of Moyanchegun as medicine, it will be able to recover the adjustment force that overlooking the distant. In the case of the general myopia, and corrected by using the concave lens glasses, it is I felt that if instead of the lenses of the eyeglasses to fit when the frequency is changed with the growth. By doing so, it will be able to prevent such as eye strain.

However, even with the glasses that matches the vision, or could not see the object is well, if the eye is a tired, because other diseases are concerned, we recommend that you receive a diagnosis in ophthalmologist.

Symptoms and causes of refractive error production, treatment

Raw In contrast to myopia, in most cases behind the focal point of the retina Metohi accommodation power of Moyanchegun is undiminished only myopia since, never eyesight is extremely reduced. However it is you are and just characterized by little become tired look to continue the close. In particular, when adjusting force is 40s to decrease, there is a case where the feature is loss of visual acuity can be seen while clearly.

The therapeutic method is calibrated using a convex lens, so changes a lot of power when it comes to presbyopia, it must be changed to match it to the lens.

Causes and symptoms of refractive error astigmatism, treatment

Cornea and crystalline lens, in order to activities to collect external incoming light to a point, where it is or looks it is distorted or double that seen if any distortion or visible blurred one side direction of the line To do. Since repeating the focus is trying to correctly see the things Even though this astigmatism, is eye strain is likely to. The cause, there are things and acquired ones innate. To cause the symptoms of astigmatism is becoming increasingly small distortion of born grows is born, it is likely to be myopic or raw. Acquired or slightly shift the position of the lens due to a flaw in those, such as is deformed to cause the disease of the cornea, an example in which the cornea and crystalline lens is the astigmatism in response to the pressure due to illness of the eye eyelid There.

As a treatment, it corrected with Wu Nojurenzu of glasses or contact lenses.

Causes and symptoms of refractive error presbyopia, treatment

Invisible gradually well become blurred character of newspapers and magazines for more than 40 years old, presbyopia You can use the effort to try to see while giving force to the eye

Suspicion is strong. The presbyopia, is one of the general eye of aging. Eye of aging, but occur in some parts of the eye, refers to the state in which the lens is closest distance to the object is solidified and aging seem to ensure (regulation Gungamu) was longer. Which means that it is a state to watch and release until well visible distance correctly visible character in the regulation of the lens until now.

As a treatment, to calibrate using reading glasses, you may want to use when problems reading glasses. Presbyopia symptoms appeared since no progression of presbyopia is increased The use of reading glasses from an early age, and the state in which eyes are tired, it uses reading glasses to choose a time to avoid eye strain We recommend it. However you can not see may be using reading glasses, if tired eyes, because other disease is suspected, such as glaucoma, so that you receive a diagnosis of ophthalmologist.