• A newly designed blink comparator functions by presenting similar images that are alternated rapidly by varying the illumination. The device allows one to detect small changes easily without tedious measurements or study; it also serves as a stereo viewer.
Lazerson HE. Blink Comparator. Arch Ophthalmol. 1984;102(4):635. doi:10.1001/archopht.1984.01040030507037