The Moorfields Acuity Chart (MAC) Set
Moorfields Acuity Chart (MAC) Set
Innovative low-contrast visual acuity charts featuring vanishing optotypes for advanced visual function assessment.
Advanced Visual Acuity Assessment
The Moorfields Acuity Chart (MAC) Set consists of two specialized letter charts: MAC 1 for the right eye and MAC 2 for the left eye.
These charts utilize high-pass filtered letter targets composed of a black core surrounded by white borders and presented on a grey background. This unique design causes the letters to gradually disappear as they approach the visual threshold.
Because the letters seem to vanish near the detection threshold, they are commonly referred to as vanishing optotypes. This approach provides a highly sensitive method for evaluating visual acuity and visual function.
Dual Chart Design
Separate charts designed specifically for right and left eye testing.
Vanishing Optotypes
High-pass filtered letters disappear near threshold, improving sensitivity.
Grey Background
Optimized presentation enhances contrast control and testing consistency.
Research Proven
Widely used in clinical research and advanced visual acuity assessment.
What Makes Vanishing Optotypes Unique?
Traditional visual acuity charts rely on the recognition of high-contrast letters. The MAC Set introduces high-pass filtered letters that become increasingly difficult to detect as they approach the patient's visual threshold.
This innovative design reduces the influence of simple edge detection and creates a more demanding assessment of visual performance, making the charts particularly useful in clinical studies and advanced vision testing applications.
Learn More About the MAC Set
Explore complete product specifications, clinical applications, and ordering information.
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