VCS Test
The Visual Contrast Sensitivity (VCS) Test helps detect subtle changes in your brain and nervous system that traditional eye exams often miss. It’s a simple, non-invasive way to uncover early signs of inflammation, toxin exposure, or neurological stress.
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Tests & Diagnostics
Our Lead Specialist
Rezilir Health LLC
Dr. Craig Tanio
VCS (Visual Contrast Sensitivity) Test
What is the VCS Test?
The VCS (Visual Contrast Sensitivity) test is a quick, computer‑based screen that measures how well you see fine details at low contrast levels—often called the “gray‑on‑gray” of vision. Because contrast perception relies on both the eyes and the brain, subtle deficits can reveal early neurological stress long before a standard eye chart shows trouble.What does the VCS Test measure?
- Ability to detect patterns and shapes as contrast gradually fades
- Neurologic processing of visual information across multiple spatial frequencies
- Early impairment linked to biotoxin exposure, inflammation, nutritional deficits, or other neuro‑inflammatory processes
Why might someone need this test?
- Screen for CIRS / mold‑ or biotoxin‑related illness
- Detect low‑grade neurologic changes from Lyme, heavy metals, or toxicants
- Baseline and monitor visual‑neurologic function during detox, HBOT, or brain‑health protocols
- Rule in or out contrast‑sensitivity issues when evaluating unexplained fatigue, headaches, or cognitive fog
What is it like to take this test?
- Setup – Sit 18 inches from a calibrated screen in a well‑lit room.
- One eye at a time – Cover one eye, then the other.
- Identify faint patterns – Click when you see a shape; images fade in contrast as the test progresses.
- Finish in 10–15 minutes – Immediate pass/fail plus raw scores.
How does this test fit into your care at Rezilir?
For patients navigating CIRS, Lyme, or brain‑health programs, VCS is our fast, low‑cost indicator of neuro‑inflammatory stress. Changes in your contrast curve often parallel symptom shifts and lab markers, giving us another data point to fine‑tune treatment.How We Use the Results
- Confirm suspected biotoxin exposure when symptoms flare
- Track recovery as detox and anti‑inflammatory therapies progress
- Decide when to broaden evaluation to QEEG, NeuroQuant MRI, or Shoemaker labs
Common Programs or Evaluations This Test Supports
- The Rezilir Way for Chronic Conditions
- The EDWIN Early Detection Wellness Insights Notifier lab panel