E chart
An E chart, also known as a tumbling E chart, is an eye chart used to measure a patient's visual acuity. == Uses == This chart does not depend on a patient's easy familiarity with a particular writing system (such as the Latin alphabet).
An E chart, also known as a tumbling E chart, is an eye chart used to measure a patient's visual acuity. == Uses == This chart does not depend on a patient's easy familiarity with a particular writing system (such as the Latin alphabet).
An E chart, also known as a tumbling E chart, is an eye chart used to measure a patient's visual acuity. == Uses == This chart does not depend on a patient's easy familiarity with a particular writing system (such as the Latin alphabet).
Source: Wikipedia "E chart" · CC BY-SA 4.0
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