The ABDO Frame Rule: An Essential Tool for Dispensing Opticians
The Essential Tool for Every Dispensing Optician: The ABDO Frame Rule
Precision is the backbone of optical dispensing. Whether you are a seasoned professional or a student at the start of your career, having reliable tools is non-negotiable. Among the most trusted is the ABDO Frame Rule, a staple in the industry designed by George Clayton and produced by the Association of British Dispensing Opticians.
Why It’s a Practice Essential
Measuring only 155mm x 60mm, this compact white plastic rule is deceptively powerful. It is specifically engineered to eliminate guesswork, allowing you to take 11 different frame and facial dimensions with clinical accuracy.
From standard measurements to more complex bridge adjustments, the rule enables you to calculate:
Patient Fit: Interpupillary Distance (PD)
Lens Positioning: Boxed Lens Size (Horizontal & Vertical) and Boxed Centre Distance
Bridge & Frame Geometry: Distance Between Lenses (DBL), Crest Height, Bridge Projection, and Bridge Width/Height.
Master Your Measurements
Accuracy in dispensing doesn't just improve the patient experience—it reduces lab errors and ensures the best possible visual outcome. To help you get the most out of this tool, every rule comes with a comprehensive instruction manual to guide you through each measurement technique. ABDO Frame Rule Guide
Ready to upgrade your dispensing kit?
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