Visual function examination training instrument

The utility model provides a visual function examination training instrument. The visual function examination training instrument comprises a shell, and a lens switching assembly, a display and a controller which are arranged in the shell, the lens switching assembly comprises two lens frames which are rotatably connected in the shell, and a plurality of lens mounting holes are formed in the lens frames and used for mounting different lenses; two observation holes are formed in the shell, a driving unit is arranged in the shell, and the driving unit is in transmission connection with the corresponding lens frames and used for driving the lens frames to rotate, so that different lenses on the lens frames are switched at the corresponding observation holes; a screen of the display faces the direction of the observation hole and is used for displaying test content; the controller is electrically connected with the displayer and the driving unit and used for controlling the content displayed by the displayer and