SpotChecks™ Contrast Sensitivity
SpotChecks™ Contrast Sensitivity Chart
A simple, affordable, and innovative solution for monitoring contrast sensitivity and disease progression between office visits.
Contrast Sensitivity Testing Made Simple
The SpotChecks™ Contrast Sensitivity Chart (formerly known as CamBlobs™) was developed by Dr. John Robson as an affordable and practical solution for patients to monitor changes in visual function between office visits.
Traditional contrast sensitivity tests can be expensive, difficult to transport, or require supervised testing environments. SpotChecks™ was designed to overcome these limitations by providing a simple self-administered testing method that can be completed virtually anywhere.
Why Choose SpotChecks™?
Quick
Testing takes only 2–3 minutes to complete.
Easy
Patients simply mark an “X” on each contrast target they can see.
Accurate
Designed to provide reliable and repeatable contrast sensitivity measurements.
Affordable
Low-cost testing solution suitable for broad patient populations.
How It Works
Patient reviews the contrast targets on the test sheet.
Mark an “X” on each contrast target that is visible.
Score the results in approximately one minute.
The completed sheet becomes a permanent patient record.
Designed for Modern Patient Monitoring
SpotChecks™ enables patients to actively participate in monitoring their visual function between appointments. The simple testing process makes it suitable for home use while providing clinicians with valuable information regarding disease progression and treatment outcomes.
Quick. Easy. Accurate. Repeatable. Affordable.
Available for Online Purchase
Introductory kits and full testing kits are now available. Explore product details, specifications, and ordering information.
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