Instrument, Measuring, Stereopsis

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Facility	Where	Also makes	Recorded by
Optego Vision USA INC	Tucson, AZ	Caliper, Ophthalmic · Case, Contact Lens · Chart, Visual Acuity+27 more	federal registry
Micro Medical Devices, INC.	Calabasas, CA	Adaptometer (Biophotometer), Software-Based Data Acquisition And Stimulus Generation · Digital Visual Acuity Test · Haploscope+7 more	federal registry
Stereo Optical Company, INC	Chicago, IL	accessories supplies · Chart, Visual Acuity · Refractometer, Ophthalmic+6 more	federal registry
Gulden Ophthalmics INC.	Elkins Park, PA	Chart, Visual Acuity · Clip, Lens, Trial, Ophthalmic · Conformer, Ophthalmic+37 more	federal registry

Federal registry means a federal dataset — an FDA device or drug listing, a TTB permit, a federal award — records this product against the facility or its company. It is not an approval of anything by anyone. Company website means we read it from the company’s own site. Company-provided means the verified owner of a claimed page added it: a claimed page may add products, and every one it adds is marked that way here.