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Ships within 48 hours · Estimated delivery Oct 24 - Oct 29
Proven measurement algorithm yields accurate
When using the correct procedure
* No methylcellulose required
The Tonoclear prisms come individually packed
100-240V Compatible Transformer
Clearchart 4P Polarized Digital Acuity System 0.8mm Proven measurement algorithm yields accuratePediatric Includes one childrens video with audio for fixation with the ability to upload four additional video files Contrast Sensitivity Three light levels available for contrast testing along with the ability to adjust frequency and rotate image angle. Color Vision A selection of twenty four charts is available for testing color vision deficiencies. These charts are digital renderings of the American Optical H. R. R. Psuedoisochromatic Plates.