The testing frame is composed of main frame, cross beam, nose support, mirror leg and adjusting knob.

Wear the trial frame for the user, adjust the trial frame to the user's most comfortable, the user's eyes in

the center of the main frame frame. However, the current test frame is in the component of the mirror leg,

the shape of the mirror leg can not be adjusted according to the needs of the user, so that the user will have uncomfortable feelings; Also, the main frame of the current test frame will be worn when it is scraped and

pressed to the face of the user, causing the user to have an uncomfortable feeling.