Product Description
Getting PD right is the difference between a lens that sits where it should and one that fights the wearer’s eyes — and it gets harder with progressives and higher prescriptions. The Digital PD Meter takes the guesswork out of it. Instead of a ruler held against a patient’s face, it uses the corneal reflection light coincidence method to place the measurement objectively, then shows the result digitally: three readings — right, left, and combined — so you capture true monocular PD as well as the total.
Precision is where a dispensing tool earns its keep. This unit resolves to 0.25 mm with 0.5 mm graduations, covering 48–77 mm binocularly and 24–38.5 mm per eye, across a focusing range from 30 cm out to infinity — so it handles both near and distance PD. It also measures the distance from the top of the cornea to lenses or frames, which is useful when you’re dialing in fitting height and vertex for a frame. An automatic shut-off (about a minute after you stop) keeps the batteries from draining between patients.
The appeal is simple: it delivers the familiar Essilor-style pupilometer workflow at a far more accessible price, in a compact, battery-powered unit that lives on the dispensing bench and travels between offices without fuss. It’s a practical, everyday instrument for optical shops, labs, and practices that measure PD all day. This unit is new, backed by a 1-year warranty, and in stock — add it to your cart to order.
Key features
- Digital readout with three values: right, left, and combined PD
- Accurate to within 0.25 mm; 0.5 mm graduations
- Objective corneal reflection light coincidence measurement method
- Monocular and binocular PD: 24–38.5 mm per eye, 48–77 mm both eyes
- Also measures cornea-to-lens/frame distance for fitting
- Focusing range from 30 cm to infinity (near and distance PD)
- Automatic shut-off ~1 minute after use to save battery
- Compact, battery-powered, and portable for the dispensing bench
| Feature |
Details |
| Type |
Digital pupilometer (PD meter) |
| Style |
Essilor-style |
| Measurement method |
Corneal reflection light coincidence |
| Readout |
Digital; right, left, and combined values |
| Measurement range |
48–77 mm (both eyes); 24–38.5 mm (each eye) |
| Accuracy |
Within 0.25 mm |
| Graduations |
0.5 mm |
| Focusing range |
30 cm to infinity |
| Additional measurement |
Cornea-to-lens/frame distance |
| Auto shut-off |
Approx. 1 minute after use |
| Power supply |
4.5 V DC (3 × LR03 / AAA batteries) |
| Condition |
New |
| Warranty |
1 year |
Frequently Asked Questions
What does the Digital PD Meter measure?
It measures interpupillary distance (PD) and displays three digital readings: right eye, left eye, and combined. It also measures the distance from the cornea to the lenses or frame, which helps with lens fitting.
Does it give monocular PD, or only total PD?
Both. It reads each eye separately (24–38.5 mm per eye) and the combined total (48–77 mm), so you get true monocular PD — important for progressive lenses and higher prescriptions — as well as binocular PD.
How accurate is the Digital PD Meter?
Results are accurate to within 0.25 mm with 0.5 mm graduations. It uses the corneal reflection light coincidence method, which places the measurement objectively rather than relying on a hand-held ruler.
How is it powered, and is it portable?
It runs on 4.5 V DC from three LR03 (AAA) batteries and shuts off automatically about a minute after you stop, so it’s fully portable and easy on batteries — ideal for the dispensing bench or between offices.
Does the Digital PD Meter include a warranty?
Yes. It’s a new unit and includes a 1-year warranty. It’s an Essilor-style pupilometer — the familiar design and workflow of that classic instrument at a more accessible price — and it’s in stock, so you can add it to your cart to order.