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Perfect PD Ruler™

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The Perfect PD Ruler™ features a nose bridge that holds the ruler stationary and perfectly centered. Measurements are taken from the center outward to give both monocular PD readings without subtraction or moving the ruler. The ruler's rounded corners are safe for use near the patient's eyes, and the ambidextrous design has hand-holds on both ends. The ruler is made from a durable, heavy-duty plastic.

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Perfect PD Ruler™

Perfect PD Ruler™

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