Distance horizontal fusional facility (DFF): A new diagnostic vergence test for the acquired brain injury (ABI) population
J. optom. (Internet)
; 17(1)Jan.-March. 2024. ilus, tab, graf
Article
in English
| IBECS
| ID: ibc-229113
Responsible library:
ES1.1
Localization: ES15.1 - BNCS
ABSTRACT
Purpose To report the retrospectively-based, clinical diagnostic findings for the horizontal, distance, fusional facility (DFF) test in the non-TBI (traumatic brain inury), ABI (acquired brain injury) population. Methods The DFF test (4 pd base-out/2 pd base-in) was assessed and compared retrospectively in the first author's optometric practice in three clinical populations (1) post-mTBI, visually-symptomatic (n = 52), (2) post-ABI, non-mTBI, visually-symptomatic (n = 34), and (3) visually-normal, visually asymptomatic (n = 44). Results The DFF values in each group were significantly different from each other (p < 0.05). The mean non-TBI, ABI group value was significantly lower than found in the mTBI group, and both were significantly lower than the mean found in the normal cohort (p < 0.05). There was a significant reduction in DFF with increased age (p < 0.001). ROC values for the AUC ranged from excellent to acceptable (0.940.74). Conclusion The DFF test is a new and useful way to assess horizontal, distance, dynamic, fusional facility in those with presumed non-mTBI, ABI neurological conditions to assist in its diagnosis. (AU)
Full text:
Available
Collection:
National databases
/
Spain
Database:
IBECS
Main subject:
Optometry
/
Brain Injuries
Limits:
Adult
/
Humans
Language:
English
Journal:
J. optom. (Internet)
Year:
2024
Document type:
Article
Institution/Affiliation country:
Dr. Shalu Pal and Associates/Canada
/
EyeCare Professionals/USA
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College of Optometry+USA
/
University of South Alabama Mobile/USA