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  • Sample Image

    Pencil Push-ups

    Printable instructions for pencil push-up exercises to improve NPC in patients with convergence insufficiency.

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    Visual Acuity Conversion

    Convert visual acuity between Snellen, LogMAR, decimal, and VAR with this printable table.

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    Back Vertex Power

    Use this printable table to quickly convert your spectacle plane refraction to the corresponding contact lens Rx.

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    Diopters to Radius Conversion Chart

    Quick reference table for keratometry conversions between radius and diopters. (D = 337.5÷R). Or try our on-site calculator if you need values not listed.

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    Binocular Vision Expected Values

    A streamlined reference chart of standard normative values for common binocular vision tests including phorias, vergence ranges, near point of convergence (NPC), and relative accommodation.

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    Amsler Grid

    Printable Amsler grids with instructions available in English and Spanish, to promote self-monitoring of vision in patients with ARMD and other macular conditions.