Glaucoma detection with damato multifixation campimetry online.

Area of Science:

• Ophthalmology
• Medical Technology

Background:

• Glaucomatous visual field loss requires accurate and accessible detection methods.
• Internet-based visual field testing offers a potential solution for widespread screening.

Purpose of the Study:

• To evaluate the Damato Multifixation Campimetry Online (DMCO) test's diagnostic performance for glaucoma.
• To assess the sensitivity and specificity of DMCO versions in detecting glaucomatous visual field loss.
• To develop and validate algorithms for interpreting DMCO results.

Main Methods:

• Diagnostic test evaluation involving 97 individuals comparing DMCO with standard white-on-white perimetry.
• Development and evaluation of interpretation algorithms using the Glaucoma Staging System as a gold standard.
• Calculation of Receiver Operating Characteristic (ROC) curves and Area Under the Curve (AUC) for algorithm performance.

Main Results:

• Algorithms achieved AUCs ranging from 0.79 to 0.90, with a promising algorithm combining two DMCO STANDARD tests.
• Sensitivity varied with glaucoma severity: 11.8% (mild), 71.4% (moderate), 100% (advanced), and 100% (severe).
• Specificity was high at 98.1%, with a median test duration of 86 seconds (controls) and 125 seconds (glaucoma patients) for DMCO STANDARD.

Conclusions:

• DMCO demonstrates potential as a free, online tool for identifying glaucomatous visual field defects in preselected populations.
• Further studies are investigating DMCO's utility in unselected populations.
• The test's accuracy is influenced by glaucoma severity, highlighting the need for careful interpretation.