Precision Vision 4-Metre ETDRS LogMAR Chart (Chart 2 Original)

Carry out accurate visual acuity tests using the Precision Vision 4-Metre ETDRS LogMAR Chart (Chart 2 Original). This eye test chart has been designed to offer accurate and repeatable results, and is suitable for use in clinical studies and low-vision testing. The chart has been designed with an acuity range of 40 metres to 2 metres, and includes lines of equal difficulty that decrease in size further down the page.

What's Included?

• 1 x ETDRS LogMAR Chart

What Is the Function of a LogMAR Test?

ETDRS logMAR charts are designed to offer a means of assessing visual acuity. The design of this logMAR chart is also suitable for use in clinical studies, and for low-vision testing. Those that may find the chart particularly useful include optometrists, opticians, doctors, and vehicle licensing agencies.

Key Features and Benefits

• ETDRS logMAR eye-test chart
• Designed for assessing a patient's visual acuity
• Suitable for testing visual acuity at a 4 metre distance
• Offers accurate and repeatable results
• Designed for use by optometrists, opticians, doctors, and vehicle licensing agencies
• Acuity range of 40 - 2 metres
• Standardised format is acceptable for studies conducted by the American National Eye Institute
• Suitable for conducting low-vision tests
• Lines are of equal difficulty, and decrease in size further down the page
• Constructed to fit into specific Precision Vision illuminated cabinets

Original Versus Revised ETDRS Charts

The original ETDRS logMAR charts are the only standardised choice for studies sponsored by the American National Eye Institute. The original chart designs are the preferred option for clinical studies, low vison evaluations, and gathering repeatable visual acuity measurements. The revised charts offer a different scoring system, and a different arrangement of the included letters, and are best for basic visual acuity testing.