How do you read the Jaeger eye chart?

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Jaeger Eye Charts This chart consists of short blocks of text in various type sizes. The type scale ranges from J1 to J11 or larger, with J1 being the smallest type. J2 is considered the equivalent of 20/20 distance vision at the reading distance indicated on the card, which is usually 12 to 14 inches from your eyes.

How do you convert Snellen to M notation?

To convert from reduced Snellen (RS) to metric (M) notation, one must divide the denominator by 50. In the above example 50/50 = 1M. To convert from Reduced Snellen to Printer’s point, divide the denominator by 6. To convert from Printer’s point to metric, divide by 8.

What is a Jaeger 1 eye test?

The Jaeger eye test chart is used for reading up close and for determining your near vision. When reviewing the chart, you will see the notation 1 next to the paragraph with the smallest text and each progressive paragraph of larger text is noted with an increase in the number.

What is the size of a Jaeger chart?

This Jaeger eye chart is designed to measure near vision and is intended to be placed 14″ away from the viewer. Chart dimensions 17.5cm x 12cm.

What is M notation?

M notation. Indicates the distance at which the letter would make a 5′ angle, from top to bottom, in meters.

What is 6 7.5 on the Snellen scale?

For the Snellen chart, when assigning vision as the lowest line on which all letters were read correctly, all participants with vision of 6/7.5 or better could read a number-plate at 20 m, and no participant with worse than 6/36 was able to successfully read a number-plate (figure 1).

What is J1 near vision?

Jaeger scores (designated J1, J2…) are sometimes used to rate near acuity. However, these values are not standardized for size or test distance….Visual Acuity and Eye Charts.

Jaeger	Snellen	Point
J1	20/25	4
J2	20/30	5
J3	20/40	6
J5	20/50	8

How do you make a Jaeger chart?

Jaeger eye chart

The chart is held at a specific reading distance (such as 14 inches) and you are asked to read the passage with the smallest type you can see.
The chart is moved forward and back until you are able to read a certain type size.

How far away from the eye the Jaeger chart should be positioned?

Normal Results The top number refers to the distance you stand from the chart. This is often 20 feet (6 meters).