TableRe Measure Optical Vernier PD Ruler Pupil Distance Meter Eye Ophthalmic Tool (1 Pack)

Livraison rapide… merci !!

It took me a minute to figure it out because it didn't come with instructions I had to google it. My sons glasses come in and he sees perfectly. The measurements are spot on once you know how to figure out how to read the PD. I would definitely purchase it again if I needed to because it is thin and can break easily but so far so good you definitely don't want your child or pet to get ahold of it.

It works, it does the job fairly well really, I like being able to line up the 2 bars and measure the distance that wayit's kind of cheap plastic but seems sturdy enoughno sharp edges on this either so maybe they fixed that or quality control?the screw that some people had issues with seems fine too but isn't really that necessary if you can just read the number in the mirroralso the one I have is accurate. I compared it to a good quality tape measure and it all lines up as it should

No instructions came with the vernier. The nose piece is very loose. I compared vs what my optometrist measured and there was a fairly large difference. I ended up returning them.

Bought with one of the machines that uses your phone to give you an eye test. That machine didn't work (not even close to working). I see what this does and I guess it would be fine. Certainly, it is more functional than the machine. Which Did Not Work.