Pupil Distance Meter  - measure PD by taking a picture
http://android.vistechprojects.com/app/pdmhttp://ios.vistechprojects.com/app/pdm

Pupil Distance Meter allows you to measure pupillary distance (PD) using your camera and a standard card (e.g. gift card, id card, credit card, etc).  Now you can quickly check your PD  using this app. 


Features:
  • rear or front camera can be used for taking a picture
  • upload picture from the gallery
  • millimeter (mm) units
  • special rulers to mark pupils and a reference card
  • Double Tap or Pinch zoom for accurate alignment 
  • auxiliary lines and points for segment height (bifocal), monocular (center to bridge) and frame measurements
  • monocular measurements (OD and OS)

If you like the app and find it useful please support us with your feedback and comment. Feel free to contact support@vistechprojects.com with any questions or comments.

Thank you,
VisTech.Projects Team

Screenshots




How to use

  1. Take or load a face picture with a reference card (see guide in the app how to hold the card properly)
  2. Mark eye pupils with the ruler (white)
  3. Mark a reference card length with the card template (green)
  4. See PD result 
    
Tips for accurate results:



  • Hold a reference card parallel to camera / display
  • Hold the card next to eye corner to keep eyes and card on the same vertical plane
  • Use zoom (double tap or pinch) to mark pupils and the card as accurate as possible
  • Don not bring the camera close to your face, keep it at arm’s length
  • Do not focus your eyes on the camera when taking a picture, try to look "through" the device
  • Please check the result: the normal PD range for adults is between 50mm and 78mm (41mm to 55mm for kids). 

WARNING!!! 


If you use a credit card as a reference and share your measurement results with a screenshot, please MAKE SURE YOUR CREDIT CARD INFORMATION IS NOT VISIBLE. You are sharing your information on your own risk. VisTech.Projects LLC is not responsible for any consequences.


Updates

30-May-16: v2.0.1 -  improved design, usability, performance and accuracy




ABOUT THIS APP
UPDATED:
May 30, 2016

CURRENT VERSION:
2.0.1

REQUIRES ANDROID:
4+

SIZE:
2.7M

PRICE:
see Google Play