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πŸ“ huanyu digital pupilometer: ce approved pd meter & pupil distance measuring tool (ly-9c) logo

πŸ“ Huanyu Digital Pupilometer: CE Approved PD Meter & Pupil Distance Measuring Tool (LY-9C) Review

4

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Poor

Revainrating 2.5 out of 5Β Β 
RatingΒ 
2.5
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Description of πŸ“ Huanyu Digital Pupilometer: CE Approved PD Meter & Pupil Distance Measuring Tool (LY-9C)

Our PD Meter is a Digital LCD Display precision optical instrument used to measure distance between human pupils in the process of optometry for fitting spectacles. It has the function of measuring single eye/double eyelid distance, LY-9AT is more suitable for double eyelid distance. If you have higher requirements for measuring single eye distance, we recommend LY-9AT (ASIN: B07FJVJ8XL). ADJUSTABLE VIEWING DISTANCE: the viewing distance is from 30cm to infinity, which can meet various needs. EFFECTIVE MEASUREMENT RANGE: binocular measurement: 50 to 80 mm; monocular measurement: 25 to 40 mm (Resolution: 0.5 mm). MONOCULAR MEASURMENT AVALIABLE: it can be used in monocular measuring the left eye and right eye separately, and the measuring values are displayed separately. POWER SAVING: in order to prevent power consumption caused by forgetting to shut down, the switch automatically turns off within about 1 minute after the operation is completed. Key Product Features.

Reviews

Global ratings 4
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Type of review

Revainrating 1 out of 5

broken after about 10 months

Definitely choose something more durable. The battery case literally fell apart after 10 months of use. Cannot be repaired or returned. I would choose something stronger from well-known brands.

Pros
  • ADJUSTABLE VIEWING DISTANCE: Viewing distance from 30cm to infinity to meet different needs.
Cons
  • Was damaged

Revainrating 3 out of 5

No build quality

Everything seems to be fine. I can doubt the calibration. Slightly different readings than my other devices. The shutter switch that switches from monocular to binocular is loosened. It has a little game. This makes me feel like the build quality could be better.

Pros
  • MONOCULAR MEASUREMENT AVAILABLE: It can be used in a monocular to measure left and right eyes separately, and the readings will be displayed separately.
Cons
  • Only available in black

Revainrating 2 out of 5

Definitely not Essilor

This instrument looks very similar to the Essilor instrument but differs in quality. You have to deal with that all the time. I bought two at once - one didn't come working and was sent back for replacement. Received the replacement quickly. Both worked flawlessly for about two weeks, after which one of the local/remote controls started to get stuck in one position and became very difficult to change settings. Conclusion - I have one of the three that still works. Would not recommend buying…

Pros
  • ENERGY SAVING: To avoid power consumption caused by forgetting to turn off, the switch will turn off automatically about 1 minute after the operation is complete. The main characteristics of the product
Cons
  • There are other interesting options.

Revainrating 4 out of 5

Works well although very expensive for what it does.

I like the machine and it works well. You must have good overhead lighting to get good results. I don't see anything in the instructions about the metal bar. It needs to be pushed up (and it's possible because it's spring-loaded) so that your nose rests against the nose of the device. The instructions say nothing about this metal stick. Should it be at a distance from the forehead? Will it affect the measurement? You can't position your nose correctly without pushing it to the side, so you have

Pros
  • EFFECTIVE MEASUREMENT RANGE: binocular measurement: 50 to 80 mm; monocular measurement: 25 to 40 mm (resolution: 0.5 mm).
Cons
  • Quick Start Guide