A device adapted to a pair of eyeglasses is provided according to the present application, which includes a means for collecting eye data; and an adaption frame configured to retain the means for collecting eye data. The adaption frame includes an adapter unit configured to secure the adaption frame onto the eyeglasses and/or remove the adaption frame from the eyeglasses. The device according to the present application frees the subject from wearing an apparatus having a complicated structure, which greatly reduces the difficulty and inconvenience in wearing of the subject. Moreover, the device according to the present application has a simple structural design, can be adapted to the pair of eyeglasses in a removable manner, can improve the portability in use, and also facilitates storage.