Does the Catford drum give an accurate assessment of acuity?

16Citations
Citations of this article
13Readers
Mendeley users who have this article in their library.

Abstract

Adult emmetropes and myopes were tested with the Catford drum and the results compard with subjective (Landolt C) acuity. For the emmetropes the Catford drum was found to overestimate visual acuity by a factor of approximately 4. For myopes, and emmetropes viewing through plus lenses, the discrepancies were much larger. Since the Catford drum not only overestimates acuity but will do so by a factor which varies for different visual disorders, caution is needed in clinical interpretation of results obtained with it.

Cite

CITATION STYLE

APA

Atkinson, J., Braddick, O., Pimm-Smith, E., Ayling, L., & Sawyer, R. (1981). Does the Catford drum give an accurate assessment of acuity? British Journal of Ophthalmology, 65(9), 652–656. https://doi.org/10.1136/bjo.65.9.652

Register to see more suggestions

Mendeley helps you to discover research relevant for your work.

Already have an account?

Save time finding and organizing research with Mendeley

Sign up for free