Difference between revisions of Snellen chart
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# Make a mark on the floor at the distance the chart is rated for. | # Make a mark on the floor at the distance the chart is rated for. | ||
# Stand so that your face is above that line. | # Stand so that your face is above that line. | ||
# Gently cover one eye (without actually touching it) | # Gently cover one eye (without actually touching it). | ||
# Read the lowest line you can see clearly. | # Read the lowest line you can see clearly. | ||
# Attempt to read the next line down. | # Attempt to read the next line down. | ||
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# Repeat steps 5-8 with the other eye covered. | # Repeat steps 5-8 with the other eye covered. | ||
# Repeat once more with both eyes together. | # Repeat once more with both eyes together. | ||
Please note: Unless you are in low myopia territory snellen measurements are intended to measure your vision with your distance correction. | |||
Also important to know: Lighting will effect your results and due to the nature of the diopter bubble longer charts (6m/20ft) are more accurate than the short charts (3m/10ft), though both are perfectly acceptable methods to track vision trends over time. | |||
==How to use a Snellen Chart with refraction== | ==How to use a Snellen Chart with refraction== | ||