MEASURING INSTRUMENT OF DARK ADAPTION

The utility model relates to a testing instrument of dark adaption controlled by a microcomputer (a single-board computer), which comprises a light controlling device, a visual target selecting and recognizing device, a visual target testing and answering device, an optical surveillance device and a test result displaying device. The testing instrument realizes the automatic processing of the test procedure and the test result, which reduces human intervention in the test procedure. The utility model has the advantages of high precision and convenient operation. Simultaneously, the testing instrument is provided with the optical surveillance system which can control the test condition and make a correct judge. In addition, because the testing instrument has a longer hermetic box body, the simulated test condition is similar to the natural environment, which ensures the test quality.