featured Common Optometry Tools and What They Do
A plain-language guide to common optometry tools, what they measure and which accessories are professional, screening or demonstration aids.
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View DetailsHow to Measure Pupillary Distance (PD) at Home
Learn how pupillary distance (PD) is measured, the difference between binocular and monocular PD, and how to make a careful home measurement before confirming critical prescription details.
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