Focus adjusting tool and focus adjusting set

A focus adjusting set comprising:

• a pair of autofocus eyeglasses;
• and
• a focus adjusting tool,
• the pair of autofocus eyeglasses including:
• a power variable lens;
• a power adjusting unit that adjusts the power of the power variable lens;
• a storage unit that stores power information of the power variable lens;
• and
• a control unit that controls the pair of autofocus eyeglasses,
• the focus adjusting tool including:
• an adjusting lens that refracts reflected light from a visual object;
• a housing including an inner space that allows a parallel movement of the adjusting lens;
• an adjusting unit that adjusts a position of the adjusting lens inside the housing;
• a display unit that displays position information of the visual object relative to the power variable lens;
• and
• a first end and a second end in a movement direction of the adjusting lens,
• the first end being provided with a hole for visually observing the visual object via the power variable lens,
• the adjusting lens adjusting, in response to the position thereof inside the housing, an incident angle of the reflected light from the visual object into the power variable lens, the visual object being located on the side of the second end,
• the control unit being configured to:
• acquire first position information displayed by the display unit and first power information corresponding to the first position information from the power adjusting unit;
• acquire second position information displayed by the display unit and second power information corresponding to the second position information from the power adjusting unit;
• and
• store the first and second power information for adjusting the power of the power variable lens and the first and second position information in the storage unit.