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March 15, 2022


Say yes to patient safety! Once viewed as a “victimless crime”, counterfeiting is a malicious act fueled by (or motivated ...

SpotChecks™ Contrast Sensitivity

SpotChecks™ Contrast Sensitivity Chart

The SpotChecks™ (formally known as CamBlobs™) Contrast Sensitivity Chart was newly designed by Dr. John Robson to be an inexpensive alternative for patients to self-monitor their disease progression in between office visits and is acceptable to various patient populations.  Previous to SpotChecks™, commercially available CS tests were expensive, not easily portable or require supervised testing conditions.

SpotChecks™ changes everything about gathering precise contrast sensitivity testing results. Each test is a single use test where patients test themselves by marking an “x” on each contrast target they see. Testing is intuitive; it only takes 2-3 minutes to complete the test and scoring the results is very easy and takes only a minute. The test sheet itself then becomes the record for the patient file.

Quick.  Easy. Accurate.  Repeatable. Affordable.

Introductory and Full Kits Now Available for Online Purchase