Precision Vision 4-Metre ETDRS LogMAR Eye-Test (Chart 2 Revised)

For visual acuity testing, the Precision Vision 4-Metre ETDRS LogMAR Eye-Test (Chart 2 Revised) is a great choice. This vision-testing chart consists of rows of 5 Sloan optotype letters each decreasing in size down the chart, with each row being of equal difficulty to the last. The acuity range of this chart is 40m - 2m, and it has been designed for testing at a 4-metre distance.

What's Included?

• 1 x LogMAR Eye-Test Chart

What Is the Function of the ETDRS LogMAR Chart?

ETDRS logMAR charts with revised designs are suitable for use when conducting visual acuity tests, with this particular chart being suitable for use at a 4-metre distance. This revised chart is suitable for use by eyecare specialists and vehicle licensing agencies.

The chart design consists of rows of 5 Sloan optotype letters which decrease in size as they go down the page.

What Does the Design Being Revised Mean?

The design of revised Precision Vision logMAR charts has been developed from the assessment of 7420 eyes during an ETDRS study. The differences between original and revised designs include:

• Only the original chart designs are suitable for clinical studies sponsored by the American Eye Institute
• Revised and original chart designs use the same letters, but present them in a different order
• The original chart is suitable for low vision assessments, the revised chart is not
• The letter-difficulty scoring is different for revised and original charts

Key Features and Benefits

• ETDRS logMAR chart with revised design
• Designed for conducting visual acuity tests
• Has an acuity range of 40m - 2m
• Perfect for eyecare specialists and vehicle licensing agencies
• For visual acuity testing at a 4-metre distance
• Revised chart design presents each letter at least once in each position
• Letter-difficulty score determined a study that involved the assessment of 7420 eyes
• Each row of letters is of equal difficulty to the previous row
• Compatible with select illuminating eye-test cabinets (sold separately)

Compatible Illuminated Eye-Test Cabinets

Choose an illuminated eye-test cabinet to easily and clearly display your logMAR eye-test chart. Compatible cabinets for this chart include:

• LogMAR Illuminated Eye-Test Cabinet
• LogMAR Illuminated Eye-Test Cabinet (Slim)

Alternative Eye-Test Charts

If you require an original chart design for low vision testing, or use during a clinical study, check out the below alternatives:

• 4-Metre ETDRS LogMAR Eye-Test (Chart 1 Original)
• 4-Metre ETDRS LogMAR Eye-Test (Chart 2 Original)