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1. Basic information
1.1 Uses
Used to detect visual sensitivity, refractive properties and binocular vision function of human eye.
Produce name: LCD visual chart.
Model: YPB-2100
Software version number: V3
Contraindications: none.
Target groups of patients: adults, children.
Intended users: optometrists in hospital ophthalmology and optical shops.
Specific qualifications of device users and/or other persons: have a qualification certificate for
optometry and glasses.
If cleaning and maintenance needed, please power off the product and unplug from the socket.
Detailed cleaning and maintenance method, please refer to 8 Cleaning and Protection 9
Maintenance.
1.2 Performance Parameters
1.2.1 LCD displayer: 23.8 inches (1920 ×1080 pixels)
1.2.2 Optometry distance: 1.5~7.3 m optional, step 0.1 m
5-24 ft optional, step 0.5 ft
1.2.3 Optotypes
Visual Chart: Used for vision test, including 6 types Charts such as “E”, “C”, Letter, Number, Kids
and ETDR.
1.2.4 Visual Charts display modes: all, single, row and column.
1.2.5 Automatic screensaver: 5 mins, 15 mins and 45 mins are optional.
