Description
This LogMAR Low Contrast Chart is a specialized diagnostic instrument designed to measure a patient’s visual function under low-contrast conditions. By testing the ability to distinguish objects from their background, this chart helps detect early-stage vision loss that standard high-contrast charts might miss, such as early cataracts or glaucoma.
Available in both Alphabet and Tumbling E versions, these charts are frame-mounted for maximum stability and a professional clinical appearance.
Key Features
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Precise 10% Contrast Level:
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Features optotypes printed at a standardized 10% contrast to evaluate functional “real-world” vision.
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Critical for assessing tasks like driving in fog or navigating low-light environments.
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Two Specialized Optotype Versions:
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Alphabet: Uses standardized Sloan letters for literate adult patients.
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Tumbling E: Ideal for pediatric use, non-literate patients, or those with language barriers.
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Logarithmic (LogMAR) Accuracy:
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Follows the ETDRS-style layout with 5 symbols per line and equal spacing between rows.
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Standardizes the difficulty level across all visual acuity stages for repeatable results.
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Durable Frame-Mounted Design:
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Housed in a rigid black frame to ensure the chart remains perfectly flat and distortion-free.
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Provides a sleek, medical-grade aesthetic suitable for professional eye clinics.
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3-Meter (10-Foot) Calibration:
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Specifically calibrated for a 3-meter testing distance, making it versatile for most exam rooms.
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Product Specifications
| Feature | Detail |
| Contrast Level | 10% (Low Contrast) |
| Optotype Options | Alphabet (Sloan) or Tumbling E |
| Testing Distance | 3 Meters / 10 Feet |
| Mounting Type | Rigid Professional Frame |
| Acuity Range | 1.0 to 0.0 LogMAR |
| Finish | Anti-glare, high-contrast matte surface |






