<P> A Snellen chart is an eye chart that can be used to measure visual acuity . Snellen charts are named after the Dutch ophthalmologist Herman Snellen , who developed the chart in 1862 . Many ophthalmologists and vision scientists now use an improved chart known as the LogMAR chart , . </P>
<P> A Snellen chart is an eye chart that can be used to measure visual acuity . Snellen charts are named after the Dutch ophthalmologist Herman Snellen , who developed the chart in 1862 . Many ophthalmologists and vision scientists now use an improved chart known as the LogMAR chart , . </P>
what is the snellen letter chart is commonly used for
what is the snellen letter chart is commonly used for
to measure visual acuity
to measure visual acuity