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| Early Post-Operative Rehabilitation of Binocular Function and Its Influencing
Factors in Children with Intermittent Exotropia |
| Min Zhang 1, 2, Chunxiao Wang 2, Huanyun Yu 2, Changsheng Shen 1, 2, Meiping Xu 2 |
| 1Zhejiang Industry & Trade Vocational College, Wenzhou 325027, China
2Eye Hospital, Wenzhou Medical University, Wenzhou 325027, China |
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Abstract Objective: To investigate the early rehabilitation of binocular function and its influencing factors in children
with intermittent exotropia (IXT) after successful correction of exo-deviation. Methods: This is a prospective
clinical study. One hundred and seventy-seven IXT patients (age, 7-14 years) with one-month postoperative
successful correction exo-deviation were enrolled from July 2019 to July 2020 in Eye Hospital, Wenzhou
Medical University. We used paired t test, Pearson correlation test and multiple linear regression test to
evaluate the eye position and binocular function parameters at 1 month after operation and analyze the correlation between the binocular function parameters and their preoperative clinical characteristics. Results:
All of the patients met the criteria of successful exodeviation correction, which was significantly different
from that before operation (distant fixation: -2.80
Δ±3.96
Δ vs.-33.67
Δ±9.17
Δ, t=-41.83, P<0.001; near
fixation: -4.05
Δ±4.68
Δ vs.-38.50
Δ±9.09
Δ, t=-44.27, P<0.001). The differences in distance and near stereopsis
before and after surgery were statistically significant (2.59±0.38 vs.2.80±0.25, t=7.30, P<0.001; 2.19±0.36
vs.2.36±0.44, t=5.68, P<0.001, respectively). Only 16.4% and 22.0% of the patients obtained normal distance
and near stereopsis. The sensory fusion was siginficantly improved at distance (χ
2=8.08, P=0.004), while not
at near. There was positive correlation between stereopsis and preoperative characteristic parameters, such as
the operation age, anisometropia and preoperative distance and near stereopsis (distance stereopsis: r=0.15,
P=0.043; r=0.19, P=0.012; r=0.28, P<0.001; r=0.22, P=0.004 respectively; near stereopsis: r=0.23, P=0.002;
r=0.34, P<0.001; r=0.15, P=0.043; r=0.49, P<0.001, respectively). Conclusions: The binocular function,
such as stereopsis and sensory fusion were obtained significantly rehabilitation at one-month postoperative.
Early postoperative stereopsis was correlated with age, anisometropia and preoperative stereopsis.
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Received: 06 April 2022
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| Fund:Zhejiang Industry and Trade Vocational and Technical College Innovation Team Project
(CX202101) |
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Corresponding Authors:
Huanyun Yu, Eye Hospital of Wenzhou Medical University, Wenzhou 325027, China(Email: huanyunyu@126.com )
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