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.
π CAMWAY 6 Inch Digital Caliper with LCD Display, Electronic Vernier Caliper, 150mm Stainless Steel Feeler Gauge, Plastic Digital Caliper Set for Zero Setting Inside/Outside Diameter, Depth, and Step Measurement Tool
3 Review
TV bracket Kromax DIX-18 black
52 Review
π² Johnson RAS-1B Johnny Square: Professional Aluminum Rafter Square, 7'', Silver - Top Quality with 1 Square
8 Review
Kapro - 353 Professional Ledge-It Try & Mitre Square - For Leveling And Measuring - Features Stainless Steel Blade, Retractable Ledge, And Etched Ruler Markings - 12 Inch
23 Review