ii standard eye chart

The ii standard eye chart is an electronic version of the standard eye chart made according to the national standard. You can use it to conduct vision tests. In addition, in order to support the remote control keyboard, the full keyboard function is set. All operations can be completed only through the keyboard, and it supports custom hot keys. . The ii standard eye chart is a professional visual acuity check chart. Come to Huajun to download the ii standard eye chart.

ii standard eye chart features:

1. System functions

ii standard eye chart provides several built-in functions of the system, namely:

System help: This is the help page. The default is F1.

System settings: ii standard eye chart 23 settings system parameters. The default is F2.

System exit: Exit the system, the default is esc.

Color blindness table: displays the color blindness table, the default is 0;

Astigmatism table: Display the astigmatism table, the default is L;

Current line: displays the current line, the default is enter;

Three lines: Display the three lines where the current line is located. Default is A;

Word: Display the word of the current line: the default is D;

Previous line: Displays the previous line of the current line. Default is W;

Next line: Displays the next line of the current line. Default is S;

2. Custom functions

Custom functions allow users to add keyboard functions, done in the system settings window.

3. System parameter settings

Completed in system parameter settings.

Visual Distance: In meters, determines the distance from which the person testing the vision is located.

Fine-tuning: There is no unit. Do not change the fine-tuning after determining the actual size through fine-tuning.

iiHow to use the standard eye chart:

For first time use, please set the viewing distance to 5 meters and adjust the fine adjustment to obtain the accurate size. In future use, the ii standard eye chart 23 can adjust the viewing distance at will, but do not adjust the fine adjustment.

ii standard eye chart update log:

1. Fixed other bugs;

2. Optimized software compatibility