[Evaluation of color pattern VECP in deutan]

Area of Science:

• Neuroscience
• Ophthalmology
• Color Vision Research

Context:

• Color vision deficiencies impact daily life and require objective diagnostic tools.
• Visually-evoked cortical potentials (VECPs) offer a non-invasive method to assess visual pathway function.
• Understanding deutan color vision anomalies is crucial for accurate diagnosis and management.

Purpose:

• To investigate the efficacy of VECPs in objectively detecting deutan color vision defects.
• To analyze VECP P100 component characteristics in normal subjects, deuteranomalies, and deuteranopias using equi-energy color patterns.
• To differentiate between deuteranopia and deuteranomaly based on VECP responses.

Summary:

• Equi-energy color patterns were presented to normal subjects and individuals with deuteranopia and deuteranomaly.
• VECPs, specifically the P100 component's amplitude and latency, were measured.
• Deuteranopia exhibited significantly reduced P100 amplitude and prolonged latency in protan and deutan responses compared to controls.
• Deuteranomaly showed a significant reduction in P100 amplitude and prolonged latency only in protan responses.

Impact:

• This study demonstrates the potential of VECPs for the objective diagnosis of deutan color vision deficiencies.
• The findings provide a neurophysiological basis for distinguishing between different types of deutan defects.
• VECP analysis using specific color patterns offers a promising avenue for enhanced clinical assessment of color vision.