How to check vision at home

Recently, without a computer, tablet and phone can not do even schoolchildren of junior classes. Permanent eye load can lead to impairment of vision. In the interval between preventive inspections, you can control the vision yourself and check the visual sharpness.

1

How to check vision yourself

Surely you are familiar to the test test check "Sleavenna", this table with letters or rings hangs on the wall in each opylist's office. It uses ophthalmologists to verify visitor acuity. Another Table "Sivseva", it is often called "SB" as a derivative of the first two letters. The letters in this table of different sizes, above - large, the lower - the smaller. It is believed that if a person sees the last line, then its visual acuity is 100% or 1.0.

It is very important to know at what height you need to place the table and at what distance checking visual acuity. You can print this table to check the vision at home.

How to check vision:

• Download the components of the table file.
• Print each file on the A4 sheet.
• Sheets need to be glued together and place on the wall so that at the level of the eye there are 10 lines of table. Take care that the table is well lit.
• Go for a distance of 5 meters.
• Close the right eye with palm, only this eye is not needed.
• No more than 2-3 minutes is released for recognition of each letter.
• If not a single error is allowed, and you see all the letters of the last line, you can say that your vision \u003d 1.0.
• If you do not see the lines, below the 10th line of the table, or see not all letters, then you need to contact an ophthalmologist to pass a more thorough examination.
• It is possible to calculate the visual sharpness: in the ranks with the designation "V" 0.3-0.6 - 1 error was allowed, and below the V-0.7 - 2 errors, then we can say that visual acuity within the normal range.

2

How to check vision. Method 2.

Check the vision can be another way, experts call it precisely check visual acuity at close range.

How to do it:

• This on-line verification of view, you want to go on the computer.
• A simple test will reveal the problem at an early level.
• If you wear glasses or lenses, to work in them.
• The distance from the monitor should be between half a meter and 70 cm.
• Open the test, the eyes do not zazhmurivayte, close one eye is not necessary.
• Look straight ahead, click on the arrows, according to the specified direction of the letter "W".
• Upon completion of the test program will result.
• By this linkyou can learn not only visual acuity, but also to check the color vision, contrast sensitivity of the eye, dvuohromny pass the test and the test for the identification of assigmatizma.

3

Check the visual acuity of the child

Preschool children check visual acuity at another table called "table Orlova." A child who does not know the letters will not be able to say something, so this table has been specifically designed for young children.

How to check the child's vision:

• Print the table in A4 format.
• Children eyesight checked with other distance than in adults - with 2.5 m.
• Table place on the wall of a child's eye level.
• Take care of good lighting.
• Check the first right eye (left closed), then the left.
• But, before you start the test, it is advisable to acquaint the child with the images. Let the kid will call all the figures, it will understand what was wanted of him.
• The table placed 12 lines, if the kid sees the top line, we can say that the vision in the normal range (0.1), in 3 years of age ophthalmologists believe norm figure 0.6.
• Do not rush your baby, but do not tighten the testing, because the kids get tired quickly.

Check the visual acuity can be on-line. Simple tests are very like small children, they are happy to be looking for a couple of characters that are in the center of the picture.