warningSome of our site features may not be supported below Internet Explorer 8. For the best experience, please upgrade to a current browser. close

HACSS

Holladay Automated Contrast Sensitivity Testing System

Dr. Jack T. Holladay MD, MSEE, FACS and M&S Technologies have teamed up to produce the Holladay Automated Contrast Sensitivity System, a patented CSF System with rotationally symmetric targets and randomly presented optotypes.

The 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 favorably comparing it against established contrast testing methods and comprehensive normative data, HACSS has revolutionized contrast sensitivity testing.

Key Features of the HACSS System

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
Conducts contrast sensitivity testing at (1.5, 3, 6, 12 and 18) cycles per degree 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
Integrate with the M&S Smart System® comprehensive visual acuity, contrast sensitivity, fixation and video display systems. Approved for clinical trials using the E-ETDRS 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 of the Holladay Automated Contrast Sensitivity System

  • Test time of less than 5 minutes per eye, capable of 2 to 3 minute screening for existing patients by starting at just 0.3 log units above previous threshold
  • Conforms to all ANSI and ISO guidelines for CSF testing
  • 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 patent 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

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

    1.5 Cycles Per Degree 80% 1.5 Cycles Per Degree 80% 3 Cycles Per Degree 60% 3 Cycles Per Degree 60% 18 Cycles Per Degree 80% 18 Cycles Per Degree 80% Inetgrated Wall Mount Inetgrated Wall Mount

    Since 1992, M&S® Technologies has served eye care professionals.
    We invite you to Find it in Smart System®!