What does the data on the vision list represent?

Vision Checklist is a tool for measuring vision level, which is usually composed of a series of letters, numbers or symbols of different sizes, and is called "vision chart". The data on the vision checklist represents the vision level of people, and usually includes the following indicators:

1. "Vision": Numbers indicate the level of vision, usually 20/20, 20/30, 20/40, etc. 20/20 means that the smallest character can be clearly seen at the standard test distance (6 meters or 20 feet). The number after the number indicates how far the tester needs to stand to see the contents of the grid.

2. "Corrected vision": the level of vision when wearing appropriate glasses or contact lenses.

3. "Astigmatism": The higher the degree of astigmatism, the more defects the vision contains, and the more corresponding corrective measures are needed.

In addition, the vision checklist can also include other indicators, such as eye position and intraocular pressure. Among them, the examination of intraocular pressure can prevent glaucoma and keep eyes healthy. In a word, you can quickly know your own eye health status through the vision checklist, and take corresponding treatment measures when necessary to protect your vision and prevent eye diseases.