A good eyesight requires two functioning eyes that are able to focus on the same object at the same time, irrespective of gaze direction, from two different angles. On the way, we are able to melt the pictures from our two eyes together into a single image, which means that we can view 3-dimensional.
Please also read the information brochure "3D-are you experiencing the world in three dimensions"
Not congenital
The ability to see is not congenital. It is only the Foundation, which is present at birth. Eyesight created within the first two years of life and skills developed during the first 8-10 years of life. People who have never developed eyesight, experience usually has no problems with it in everyday life.
What is eyesightt for?
We use sight to orient us and judge the distance in relation to other objects-for example, in traffic, when we must assess whether the distance to the oncoming car is large enough so that we can carry out an overtaking or when we are going to throw, grab or hit a ball.
Sight and learning
Many school children walking around with undetected vision problems, including problems with samsynet. For example, many will find that the text is flowing along by reading, because they are seeing double. Often children do not even know that there is something wrong, because the sight is not something they can compare with others.
Reduced Visual function in children can have a major impact both inside and outside the classroom, when the sight is the child's main tool for learning.
Lazy eye
Seeing double can be very annoying. The brain will therefore try to counteract this by either to opt to use one eye so that it will be "lazy" or by giving up to let your eyes go hand in hand. It is paying little attention when one's two eyes are not looking in the same direction. You can squint constantly or occasionally – typically when one is tired.
Typical symptoms of vision errors
Can you recognize one or more of the following symptoms, can it possibly caused by problems with your sight:
Fatigue, especially after reading
The concentration and focus
Blurred vision and tend to view double
Frontal headache late in the afternoon or after reading
Reading difficulty because the text flowing along
problems with to divert father cards for long distance and vice versa
Can sight problems be treated?
sight problems can in some cases be remedied using an eyeglass correction or Visual training. What forms of treatment that are relevant, of course, depends on what one fails.
sight problems are due to a loss of vision in one or both eyes, Visual training will typically be able to help. It is not possible to bring sight back, but in the course of a year's time the brain will have set himself on the new relationship, and problems with e.g. the distance judge will be improved.
sight test-what needs to be examined?
The purpose of the test is to determine whether the test person's sight is within normal limits.
It is in the border area or outside-since that map the internal consistency. Then, to determine the optimal means or alternatives if there are options.
A sight test is therefore not the same each time, but must adapt to test the person's needs.
But as a minimum, the test include:
Thorough mapping of the symptom profile, previously used devices and health.
Analysis of depth perception and motor skills
Determination of the optimal strength and evaluation of focusing its eyeglass quality.Assessment of load capacity and agility in free space.
After the test a knowledgeable professional can give you a good coherent explanation for an action plan.
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