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

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

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.

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.

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

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