Optical Vernier PD Ruler: Ophthalmic Pupil Distance Measuring Tool (1 Pack)

• Constructed from robust PVC plastic, this PD ruler exhibits superior durability, lightweight portability, and is engineered for long-lasting, reliable performance in professional ophthalmic measurements.
• Equipped with a precision measurement range of 0-100mm, it delivers unmatched accuracy to meet the strictest pupil distance requirements in both clinical and everyday scenarios.
• Boasting a sleek, space-saving design with dimensions of approximately 21 x 5 x 0.7 cm / 8.26 x 1.96 x 0.27 inches (LWH), it offers effortless storage and portable convenience for on-the-go use.
• Features user-friendly, step-by-step operation: Simply gaze straight at a distant stationary object, position the nose gap snugly near the eyes to locate the midpoint, then read the line aligning closest to the pupil center—ensuring consistent, reliable results.
• A top-tier promotional essential, ideally suited for hospitals, pharmacies, and medical supply outlets, as it meets rigorous professional standards while balancing practicality in the ophthalmic field.

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