The visit of policlinic can take away a lot of time. Turns, operating time of some experts and also impossibility to ask for leave from work or study - all this very complicates the process of verification of the same visual acuity. Not to spend time and forces, but at the same time not to risk health, it is necessary to know how to check sight in house conditions. Especially as there are several ways it to make.
How often it is necessary to check visual acuity in house conditions?
Experts insist that it is necessary to arrange special tests with a certain frequency. How often it is necessary most to check sight, depends on age of the person.
The child up to 6 years needs to carry out tests of times in 11-12 months, the person from 6 to 17-18 years should check sight at least 1 time in half a year, and those to whom it was already executed 20 should visit the oculist or to carry out tests at least time to a year and a half.
How independently to check sight by means of Sivtsev's table?
Each person repeatedly saw the mentioned table in the oculist's office. It can be made and independently (about it below). After the table is ready, arrange it at distance of 5 meters from yourself, at the same time it is necessary that on letters light fell.
Sit down or get up, close one eye a piece of cardboard or opaque plastic. You watch that the closed eye could see nothing through this peculiar "obstacle". Try to read letters which will be specified to you by the assistant. He, by the way, also has to record quantity of mistakes. It is considered that with sight everything be all right if the person sees the 10th line in Sivtsev's table.
How independently at home to make the table and to check sight?
To make the table, it is necessary on the computer of 22 letters Arial of 2 lines in font size. In the first - Highway, In, To, Oh, in the second - M, P, N, B, And, E, a leaf with letters also arrange Sh. Raspechatayte it at distance of 5 meters. Close 1 eye a piece of cardboard or plastic as it was written above. If the person perfectly sees everything, then it is considered that his sight to be normal.
How to check sight of the house to the child up to 6 years?
For this purpose it is necessary to find in the Internet, to download and print out Orlova's table. Paper with drawings is located at distance of 2.5 meters from the child. One eye of checked is closed by a piece of cardboard or a piece of opaque plastic.
Point to the kid by a ruler to the drawing and you ask it to call what you show. Fix on the sheet of paper of a mistake which is made by the child.
If the kid distinguishes all symbols on the 10th line without tension, then it is considered that his sight to be normal.
When the child does not see symbols on the 10th line, it is necessary to visit with him the oculist. It is possible that illumination of the table in house conditions was not it what is necessary also with sight of the kid everything is all right. But, maybe, that the help of the expert is really necessary.
"