| Description | 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 | The Cardiff Acuity Test™ is designed specifically for
acuity measurement in children aged 1 to 3 years. The
test is also helpful with other age groups with
intellectual impairment, dementia, head injury or stroke | Rosenbaum card fits in the pocket (3.5 by 6.5") and shows point, Jaeger and distance equivalents from 20/800 to 20/20. Uses numbers, directional E’s and XO patterns. For use at 14" (35 mm). Includes full moon pupil gauge 2, 3, 4, 5, 6, 7, 8, 9 mm. | The Wormington NP Card is specially designed to be a corrected Rosenbaum card. The known inaccuracies of the older Rosenbaum card (as noted by Horton and Jones in 1997 and others) have been corrected. The "J" notations are not used because of the |