Citation

Canavan Y, Archer DB. Br. J. Ophthalmol. 1980; 64(8): 613-617.

Copyright

(Copyright © 1980, BMJ Publishing Group)

DOI

unavailable

PMID

7426578

PMCID

PMC1043768

Abstract

Contrast sensitivity was evaluated in 95 patients who regained a visual acuity of 6/6 following a contusional injury of one eye. The injuries occurred 2 to 12 years prior to examination. A book of printed sinusoidal grating patterns of varying contrasts and spatial frequencies was used, and 15 patients were found to have a significant difference in contrast sensitivity between injured and uninjured eye. Eight patients had abnormalities of the media or fundus, and in 2 patients amblyopia was probably a factor. Five patients had a defect in contrast sensitivity in their injured eye, although no structural abnormalities could be detected on full clinical examination. Alterations in contrast sensitivity appeared to be a sensitive indicator of functional abnormality in eyes which appeared normal on ophthalmoscopy and other clinical investigations.

Language: en