HACSS (Holladay Automated Contrast Sensitivity System)

Co-developed with Dr. Jack T. Holladay, MD, MSEE, FACS

HACSS is a patented* CSF System with rotationally symmetric targets and randomly presented optotypes.

HACSS provides you with a system that conforms to ANSI (American National Standards Institute) and ISO (International Standards Organization) guidelines and provides a technician-free, fully automated system that can be configured to utilize the full capabilities of the M&S Smart System.

With a published study comparing it favorably against established contrast testing methods and comprehensive normative data, HACSS has revolutionized contrast sensitivity testing.

*U.S. Patent No’s. 7,354,155; 7,926,948; other patents pending.

Key Features of the HACSS (Holladay Automated Contrast Sensitivity System)

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Warranty & Service

Free Lifetime Technical Support

HACSS comes with a one-year warranty inclusive of all components. The end-user owns the software license for life and receives free, live, lifetime technical support.

M&S Technologies offers the most responsive service in the industry with 24-hour hardware replacement in the case of hardware failure. Our technicians maintain industry certification to quickly and thoroughly service our systems.

Our Commitment to You

We offer the most responsive service in the industry:

24-hour system replacement to keep your practice running smoothly and efficiently
Trained technical support personnel are readily available to answer all your questions
Real-time response during business hours, with personnel dedicated to complete customer satisfaction. When your practice has a need, it’s immediate. Not tomorrow, no half-answers, no excuses. We take your business as seriously as you do!

Testing for CSF Under Glare Conditions

Conduct CSF testing under glare conditions at low, medium or high luminance levels. Testing under glare conditions can be performed at either mesopic or photopic luminance levels.

Preferred Optotypes

Rotationally symmetric targets and randomly presented optotypes. Eliminates biases from the patient with non-rotational symmetric optical aberrations such as residual astigmatism, trefoil, coma, etc.

ANSI & ISO Guideline Conformance

Allows for conducting contrast sensitivity testing at various cycles-per-degree (1.5, 3, 6, 12 and 18) and at light levels of 85 cd/m2 (photopic) and 3 cd/m2 (mesopic). Plus, includes all of the options and parameters the agencies require for contrast testing.

Conduct Standard Vision Testing

Integrates with our Smart System^® comprehensive visual acuity, contrast sensitivity, fixation and video display systems. Approved for clinical trials using the eETDRS and ATS protocols for visual acuity.

Quick Test Feature

Reduced test time on patient return visits by starting at 0.3 log units above previous threshold, thereby minimizing test time to less than 3 minutes per eye.

Other Valuable Features

Test time of less than 5 minutes per eye (can decrease to 2-3 minutes screening for existing patients by starting at just 0.3 log units above previous threshold)
Automated, user-interactive testing eliminates technician bias or erroneous data
Store multiple test results by patient to track changes in CSF function over time
Graph, compare and print patient results against normative data
Test results can be stored locally or transferred to any media storage device
Utilizes Smart System® integrated database to store and transmit test results within minutes of test completion via internet connections