ABSTRACT
AIM:
To investigate the effect of
vision therapy system 4D combined with stereoscopic 3D
technology training for the
treatment of
amblyopia.
METHODS:
Prospective study. A total of 102
children with
amblyopia who attended the clinic from January 2018 to January 2022 were selected, and they were randomly assigned into two groups by
computer, with 51 cases in each group.
Control group received stereoscopic 3D
technology training, while
observation group participated in
vision therapy system 4D on the basis of
control group. Then the overall effective rate,
binocular visual function, spherical equivalent(SE), axial length(AL), mean corneal curvature(Km), best corrected
visual acuity(BCVA)and
visual evoked potential were compared between two groups.
RESULTS:
The overall
efficacy rate was 94.1% in
observation group, which was obviously higher than
control group(74.5%; P<0.05). The improvement in
binocular vision parameters simultaneous
perception, total fusion, and stereoacuity were all more remarkable in
observation group than in
control group(P<0.05). The △SE, △AL and △Km yielded no statistical difference between two groups(P>0.05). The latency of two spatial frequencies(1°grid and 15'grid)showed a decline in both groups, and the decline was more notable in
observation group than in
control group(P<0.05). In both groups, BCVA improved, and the improvement was more significant in
observation group compared with
control group(P<0.05).
CONCLUSION:
Application of
vision therapy system 4D combined with stereoscopic 3D
technology training for
amblyopia can effectively ameliorate the
visual acuity, promote the reconstruction of simultaneous
perception, total fusion, and stereoacuity without additional
risk of myopic shift, and improve
visual pathway function in
children.