20 vision.
7 Feb 2017 The visual acuity test is used to determine the smallest letters you can read on a standardized chart (Snellen chart) or a card held 20 feet (6 meters) away. Special charts are You will be asked to remove your glasses or contact lenses and stand or sit 20 feet (6 meters) from the eye chart. You will keep both
Procedure. Ensure good natural light or illumination on the chart. Explain the procedure to the patient. Wash and dry the occluder and pinhole. Test each eye separately – the 'bad' eye first. Position the patient, sitting or standing, at a distance of 6 metres from the chart.
27 Dec 2017 Background. Targeted assessment of distance vision in children over 8 years of age in the community health setting can be achieved using the Snellen (6 metre) chart. For further information on vision refer to Community Health Manual: • Vision guideline includes information on development of vision;
Download a Snellen eye chart and instructions for use here. During an eye exam, your eye doctor will ask you to find the smallest line of text letters that you can make out, and ask you to read it. If you can read the bottom row of letters, your visual acuity is very good.
A vision screening can be performed using the Snellen eye chart to measures your visual acuity. This is usually one of the first tests performed during a routine eye exam. The Snellen eye chart, which was first developed in 1862 by Dutch ophthalmologist Hermann Snellen, sets a standard for what an individual with normal
To find an eye doctor near you, visit www.allaboutvision.com. Snellen Eye Chart. Home use of this Snellen eye chart will help you determine the clarity of your DIRECTIONS FOR USE. For the best accuracy (and to prevent memorization), have someone assist you when testing your vision with this eye chart. If you use

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March 2018