| ORIGINAL ARTICLE |
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| Year : 2016 | Volume
: 53
| Issue : 1 | Page : 1-5 |
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Monitoring occlusion therapy in amblyopic children using pattern visual evoked potential
Radwa M Azmy1, Rasha H Zedan2
1 Department of Clinical Neurophysiology, Faculty of Medicine, Cairo University, Cairo, Egypt
2 Department of Ophthalmology, Faculty of Medicine, Cairo University, Cairo, Egypt
Correspondence Address:
Radwa M Azmy
MD, Department of Clinical Neurophysiology, Faculty of Medicine, Cairo University, Cairo
Egypt
 Source of Support: None, Conflict of Interest: None  | Check |
DOI: 10.4103/1110-1083.176316
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Background
Amblyopia is a unilateral or bilateral reduction of best-corrected vision that cannot be attributed only to a structural abnormality of the eye. It is a common childhood problem, and can be reversed if treated while the visual system is still maturing.
Objective
The aim of the present study was to investigate the role of pattern visual evoked potential (PVEP) in the assessment of visual function after occlusion therapy for children with unilateral strabismic amblyopia.
Patients and methods
Visual function was assessed clinically and using monocular PVEP, elicited by high-contrast checkerboard-patterned stimuli, before and after occlusion of the healthy eye for 1 week for every year of life in 20 children presenting with unilateral strabismic amblyopia.
Results
PVEP responses were significantly prolonged in latency in amblyopic eyes after the first assessment compared with nonamblyopic eyes. There was no significant difference in the interside amplitude. Assessment after occlusion showed a statistically significant reduction in the latency of the amblyopic eye and statistically significant improvement in the visual acuity.
Conclusion
PVEP can be used as a method of assessment of visual function after the occlusion therapy for children with unilateral strabismic amblyopia. |
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