Description
PD meter is a precision optical instrument used to measure distance between pupils. This device is a scientific and perfect design, consisting of measurement system, optical system, ESS and computer software system. This product ships from the United States.
Learn more about Pupillary Distance
Product features
1. The brightness of LED and the precision of the PD meter are adjustable.
2. The vision distance is adjustable.
3. The vision distance is adjustable.
4. Monocular PD measure available.
5. +2.0d compensation for the degree of eyesight is available.
6. Turn off automatically.
7. Long reading time.
Operational Guidance
Specifications
Operational Guidance
1. Based on the requirement (measuring distance for far or near use), adjust the fixation distance key to the position marked as ∞ or 30mm.
2. Turn on the MAIN switch.
3. Place the pupillometer's forehead and nose parts against the patient's forehead and nose.
Instruct the patient to focus on the green illuminated target.
4. The optometrist observes the reflection points on the pupils and adjusts the left and right PD adjustment keys to align with the corneal reflection points of both eyes.
5. Read the displayed values. (Typically, take the average of three readings.) RIGHT represents the right eye pupillary distance; LEFT represents the left eye pupillary distance. The middle value PD represents the distance between the pupils, i.e., the interpupillary distance.
6. Switch the PD/VD key to measure the distance between the corneas.
7. Package Diamention: 10*22*25.2 cm /3.94*8.66*9.92*inch
