PT - JOURNAL ARTICLE AU - Canavan, Y. AU - Archer, D. B. TI - Loss of contrast sensitivity following contusional eye injury. AID - 10.1136/bjo.64.8.613 DP - 1980 Aug 01 TA - British Journal of Ophthalmology PG - 613--617 VI - 64 IP - 8 4099 - http://bjo.bmj.com/content/64/8/613.short 4100 - http://bjo.bmj.com/content/64/8/613.full SO - Br J Ophthalmol1980 Aug 01; 64 AB - 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.