Ocular Cone Contrast Test (CCT) Skill
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Ocular Cone Contrast Test (CCT) Skill
Cone Contrast Test (CCT) and Photoreceptor Contrast Sensitivity Analyzer based on Rabin cone isolation psychophysics.
flowchart TD
A[Cone-Isolating Contrast Thresholds: L, M, S] --> B[Logarithmic Score Transformation: 0 - 100]
B --> C[Compute Individual L, M, S Scores]
C --> D{Score Threshold >= 75?}
D -- All >= 75 --> E[Normal Trichromatic Photoreceptor Integrity]
D -- S-cone < 60 --> F[Acquired Tritan / Macular / Glaucoma Defect]
D -- L-cone < 60 --> G[Protan Selective Defect]
D -- M-cone < 60 --> H[Deutan Selective Defect]Features
Zero PIP Dependencies: Implemented strictly with Python Standard Library (
math,json,sys,typing).LMS Psychophysics: Separates L, M, and S photoreceptor channels to detect subclinical maculopathies.
Rabin CCT Standardization: Maps raw thresholds to calibrated 0-100 diagnostic scores.
Dual Architecture: Native Python import and Model Context Protocol (MCP) JSON-RPC 2.0 stdio server.
Related MCP server: Visual Contrast Sensitivity (Pelli-Robson) Skill
Quickstart
python example_usage.pyLicense
Apache-2.0
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