Title of article :
Correlation between Worth Four Dot Test Results and Fusional Control in Intermittent Exotropia
Author/Authors :
Etezad Razavi, Mohammad Eye Research Center - Khatam-al-Anbia Hospital - Faculty of Medicine - Mashhad University of Medical Sciences , Najaran, Marzieh Eye Research Center - Khatam-al-Anbia Hospital - Faculty of Medicine - Mashhad University of Medical Sciences , Moravvej, Raheleh Eye Research Center - Khatam-al-Anbia Hospital - Faculty of Medicine - Mashhad University of Medical Sciences , Ansari Astaneh, Mohammad-Reza Eye Research Center - Khatam-al-Anbia Hospital - Faculty of Medicine - Mashhad University of Medical Sciences , Azimi, Abbas Faculty of Optometry - Paramedical School - Mashhad University of Medical Sciences
Abstract :
Purpose: To compare the results of Worth 4-dot test (WFDT) performed in dark and
light, and at different distances, with fusional control in patients with intermittent
exotropia (IXT).
Methods: Dark and light WFDT was performed for new IXT subjects at different
distances and the results were compared with level of office-based fusional control.
Results: Fifty IXT patients including 17 male and 33 female subjects participated in
the study. A significant difference (P<0.05) was observed between levels of home
and office-based fusional control (P<0.05). A weak correlation was present between
the results of WFDT and level of office-based fusional control; the highest agreement
(Kappa=0.088) was observed with dark WFDT performed at a distance of 4m.
Conclusion: Evaluation of fusional state by far WFDT, especially in a dark room,
shows modest correlation with office-based fusional control in IXT patients and can
be used as an adjunct to more complex tests such as far stereoacuity.
Keywords :
Intermittent Exotropia , Fusion , Worth Four Dot Test
Journal title :
Astroparticle Physics
