Precision Vision 2.5-Metre ETDRS LogMAR Chart (Chart 1 Revised)

For effective visual acuity testing, you need a quality eye-test like the Precision Vision 2.5-Metre ETDRS LogMAR Chart (Chart 1 Revised). This particular chart design is suitable for testing at a 2.5 metre distance, and has a visual acuity range of 25.2m - 1.2m. This test is suitable for use in optometrists centres, doctors surgeries, and vehicle licensing institutions for assessing vision.

What's Included?

• 1 x ETDRS LogMAR Chart

What Is the Purpose of the Revised LogMAR Chart?

The ETDRS logMAR test type has been designed for the purpose of visual acuity testing at a distance of 2.5 metres. This particular style of chart consists of fourteen lines of five Sloan optotype letters each, with the rows decreasing in size as they go down the chart. 

What Does the Chart Being Revised Mean?

The revised ETDRS chart was created following an ETDRS study, in which 7420 eyes were tested. The differences between the original and revised designs include:

• Though the original and revised charts use the same letters, the present them in a different order
• The difficulty rating for the letters for each chart differs
• The revised chart design is not suitable for clinical studies sponsored by the American National Eye Institute, the original designs are
• The original design is suitable for low-vision testing, whereas the revised design is not

Key Features and Benefits

• ETDRS logMAR eye-test chart
• Suitable for conducting visual acuity tests at a 2.5 metre distance
• Ideal for use by optometrists, eyecare specialists, doctors, and vehicle licensing agencies
• Consists of fourteen lines with five Sloan optotype letters each
• Each of the letters are presented at least once in each position
• Has a visual acuity range of 25.2 - 1.2m
• Suitable for use with the specific illuminated cabinets (sold separately)

Alternative Eye-Test Charts

If you require an original chart design for use in a clinical study, or for low-vision testing, check out the 2.5-Metre ETDRS LogMAR Test Type (Chart 1 Original)

Illuminated Eye-Test Cabinet Options

There are various ways that this chart can be displayed, included by being wall-mounted using an illuminated eye-test cabinet. Compatible cabinet options include:

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