Original Article
Analysis of the Accommodative Ability in Pediatric Patients with Intermittent Exotropia Concomitant after Surgery
Lili Guo, Lejin Wang
Published 2021-11-25
Cite as Chin J Optom Ophthalmol Vis Sci, 2021, 23(11): 840-844. DOI: 10.3760/cma.j.cn115909-20210419-00160
Abstract
Objective:To investigate accommodative ability in pediatric patients with intermittent exotropia concomitant after surgery.
Methods:Twenty-four pediatric patients with intermittent exotropia were recruited for a prospective study at the Eye Center, People's Hospital, Peking University, from September 2020 to December 2020. Binocular and monocular accommodative facility was tested using a ±2.00 diopter (D) flip. Accommodative responses and negative/positive relative accommodation under binocular viewing conditions at 40 cm were tested. The evaluation parameters were measured before surgery and 1 and 3 months after surgery. The data were analyzed by repeated measures ANOVA.
Results:The binocular accommodative response was 0.28±0.24 D 3 months after surgery compared to 0.08±0.24 D before surgery, the former was significant higher than the latter (95%CI: 0.033-0.363 D, P=0.015). The NRA was 2.46±0.39 D 3 months after surgery, which was significantly higher than that before surgery, which was 2.17±0.36 D (95%CI: 0.012-0.571 D, P=0.039). The PRA before surgery was -2.08±0.95 D, -2.56±1.14 D and -3.13±1.65 D, respectively, at 1 and 3 months after surgery. The PRA before surgery was significant higher than the data 1 month after surgery (95%CI: 0.125-1.979 D, P=0.023). The binocular accommodative facility was 8.58±2.21 and 9.33±2.39 cycles per minute (cpm) at 1 and 3 months, respectively, after surgery. This was significantly higher than the data before surgery, which was 6.00±2.00 cpm [95%CI: 1.485-3.681 cpm, P<0.001; 95%CI: 1.937-4.729 cpm, P<0.001]. The accommodative facility of the dominant eye 1 month after surgery was significant higher than the data before surgery (95%CI: 1.644-3.523 cpm, P<0.001), which was the same as 3 months after surgery (95%CI: 3.665-6.085 cpm, P<0.001). The accommodative facility of the non-dominant eye before surgery was significant higher than the data 1 month after surgery (95%CI: 1.019-2.898 cpm, P<0.001), which was the same as 3 months after surgery (95%CI: 3.915-6.335 cpm, P<0.001). The accommodative facility of the dominant eyes 1 month after surgery was also significant higher than the data of the non-dominant eyes (95%CI: 0.130-2.537 cpm, P=0.031).
Conclusions:The binocular vergence-accommodation system and the accommodative abilities of children with intermittent exotropia concomitant obviously improve after surgery.
Key words:
intermittent exotropia; surgery; accommodative ability
Contributor Information
Lili Guo
Department of Ophthalmology, Peking University People's Hospital
Eye Disease and Optometry Institute
Beijing Key Laboratory of Diagnosis and Therapy of Retinal and Choroid Diseases
College of Optometry, Peking University Health Science Center, Beijing 100062, China
Lejin Wang
Department of Ophthalmology, Peking University People's Hospital
Eye Disease and Optometry Institute
Beijing Key Laboratory of Diagnosis and Therapy of Retinal and Choroid Diseases
College of Optometry, Peking University Health Science Center, Beijing 100062, China
