A chart used in measuring the sharpness of a person's vision, typically consisting of a number of rows of letters of decreasing size.
 I could only read the top line of the eye chart
 Example sentencesExamples
-  The test began with the eye charts at 200 feet and all testers reading them.
 -  Without my glasses I can't make out the top letter on an eye chart.
 -  The optician will then adjust the lenses until the eye chart appears the clearest possible for the person whose eyes are being tested.
 -  My son could read only the first two rows of the eye chart.
 -  If you can only read the top line of the eye chart, you may be eligible to register as blind or partially sighted.
 -  I have been told that you memorised part of the eye chart in order to pass that section of an eye examination.
 -  They have me take out my contact lenses and read eye charts.
 -  Those whose vision had worsened by two lines or more on a standard eye chart were more likely to report a lower quality of life.
 -  I found I could read the entire eye chart.
 -  These are people who could see nothing on an eye chart and then could read three lines.