Graham Field - 1262 - Eye Test Chart Illiterate 20 Grafco Medical/Surgical

Below are the key product attributes and specifications that provide detailed information about this item:

The Graham-Field - 1262 - Eye Test Chart Illiterate 20 Grafco Medical/Surgical is a specialized vision testing tool designed for patients who cannot read letters or numbers. This chart features a series of standardized symbols (tumbling "E" shapes) in varying sizes to assess visual acuity accurately. Ideal for clinical, educational, and occupational settings, it ensures reliable vision testing for individuals of all ages, including children and non-verbal patients.

Features:
- Illiterate-Friendly Design: Uses universally recognizable "E" symbols in different orientations for easy comprehension.
- Standardized Testing: Follows the Snellen chart format with 20-foot equivalence for precise visual acuity measurement.
- Durable Construction: Made from high-quality materials for long-lasting use in medical and professional environments.
- Clear Gradation: Symbols progressively decrease in size to evaluate near and distance vision effectively.
- Versatile Application: Suitable for optometrists, schools, military screenings, and occupational health assessments.

Specifications:
- Model: 1262
- Brand: Graham-Field (Grafco Medical/Surgical)
- Chart Type: Illiterate "E" Test Chart
- Testing Distance: 20 feet (6 meters)
- Material: Sturdy paper or laminated finish (varies by unit)
- Dimensions: Standard Snellen chart size for wall mounting

Use Suggestion:
Mount the chart at eye level in a well-lit area with a 20-foot testing distance. Instruct the patient to identify the direction of the "E" symbols (up, down, left, or right) using hand gestures or verbal cues. Begin with the largest symbols and move to smaller rows to determine the smallest legible line, recording the corresponding acuity measurement (e.g., 20/20, 20/40). Regular calibration ensures consistent results.

This chart provides an efficient, non-verbal method for vision assessment, making it essential for inclusive eye care practices.