Review on 👀 Enshey Digital Pupillary Distance Meter LED PD Meter Pupilometer - 45~82mm Range with LCD Display for Optometrists & Ophthalmologists - Optical PD Measurement Tool for Accurate Interpupillary Distance (PD) by Terry West

My wife has 20 year OD and I am the optical manager in our eye practice.1. This tool seems cheap. It was very difficult to insert the battery and the controls feel rough and sloppy.2. Zooming in the viewport is nice, but the toggle for it was very hard to move.3. IMPORTANT: This is only the actually measured PD distance. This does the math to estimate other distances so a close PD may not be correct.4. It turns off automatically too early. often while still trying to get a good reading. We'll send it back. Our last pupillometer cost about the same and didn't have any of these problems. Unfortunately there is no brand listed anywhere and we cannot recall the make/model.