Comparison of sweep VEP visual acuity and Snellen visual acuity in healthy and amblyopic children
Session Details
Session Title: Presented Poster Session: New & Interesting I
Venue: Poster Village: Pod 3
First Author: : M.Kasikci TURKEY
Co Author(s): :
Abstract Details
Purpose:
To evaluate the visual acuity (VA) using sweep VEP (sVEP,visual evoked potential) in healthy and amblyopic children, and to compare it with Snellen VA.
Setting:
sVEP VA measurements reveal comparable results with Snellen VA measurements. This technique is an objective and reliable method for evaluating VA in children. The study was approved by the Medical Ethical Committee of Afyon Kocatepe University Faculty Of Medicine.
Methods:
160 children aged between 6-17 years were included in the study. Group 1 was composed of 104 healthy subjects. Group 2 included 56 verbal subjects with strabismus, or anisometropic amblyopia whose best corrected visual acuity (BCVA) were between 0.1-0.8. All subjects underwent a detailed ophthalmological examination, BCVA was measured by Snellen chart and underwent sVEP measurement. Average and maximum sVEP results were recorded.
Results:
Group1, average sVEP VA, maximum sVEP VA values were found to be 0.16, 0.084 logMAR lower than BCVA(p<0.001). Average, maximum sVEP values were correlated with BCVA values(r=0.54, p<0.001;r=0.72,p<0.001).The distribution of the differences between BCVA, average sVEP was±0.11 logMAR, BCVA, maximum sVEP was ±0.023 logMAR. Group2, average sVEP VA, maximum sVEP VA values were found to be lower than BCVA by 0.15, 0.04 logMAR (p<0.001;p=0.009).Both average, maximum sVEP values were also correlated with BCVA values (r=0.71,p<0.001;r=0.54,p<0.001). The distribution of the differences between BCVA, average sVEP was±0.16logMAR, BCVA, maximum sVEP was±0.19 logMAR.
Conclusions:
sVEP VA measurements reveal comparable results with Snellen VA measurements. This technique is an objective and reliable method for evaluating VA in children.
Financial Disclosure:
None
