Landolt C (8 Direction) Single-Sided Near Vision Card with 40 cm (16 in) Measuring Cord

The Precision Vision 2209 Landolt C Near Vision Card provides standardized logarithmic visual acuity testing at a 40 cm (16 in) testing distance. The chart uses the Landolt C (broken-ring) optotype in eight orientations—up, down, left, right, and the four 45-degree positions—allowing the patient to identify or indicate the direction of the opening rather than recognize letters.

The chart progresses in 0.1 log unit increments, from 8.0M / 20/400 / 1.3 logMAR through 0.20M / 20/10 / −0.3 logMAR. Multiple acuity notations are printed directly on the chart, including M-unit letter size, logMAR, decimal acuity, 20-foot Snellen equivalent, and 6-meter Snellen equivalent.

An attached 40 cm (16 in) measuring cord helps maintain the specified testing distance for consistent near visual acuity assessment. Precision Vision also identifies Landolt C testing as useful when alphabet recognition may be inappropriate or impractical, including multilingual testing environments or patients unfamiliar with Roman letters.

Key Features

• Landolt C optotype with 8 directional orientations
• Single-sided near vision chart
• Standardized 40 cm / 16 in testing distance
• Includes attached 40 cm measuring cord
• 0.1 log unit progression
• Acuity range: 8.0M to 0.20M
• Snellen equivalent range: 20/400 to 20/10
• logMAR range: 1.3 to −0.3
• Displays M-unit, logMAR, decimal, 20-foot, and 6-meter acuity notations
• High-contrast black Landolt C optotypes on a white background
• Direction-based response reduces dependence on letter recognition

Suitable for standardized clinical, research, screening, and multilingual visual acuity testing