| Description | Directional `E' and `C' test. | Contrast sensitivity is the ability of the visual system to detect large but faint targets. There are
some pathological conditions that reduce contrast sensitivity without impairing visual acuity,
and the test will help in the identification of | The Eger NP card provides references to many common print sizes, from newspaper headline to textbook to small legal contract size. This provides the examiner a starting point to determine acuity. The Eger card is printed with black ink on yellow |