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Abstract：
OBJECTIVE: This study aimed to compare the preoperative clinical features of patients with sensory esotropia (ET) and sensory exotropia (XT).
METHODS: In a retrospective study, the medical records of 13,252 patients who underwent strabismus surgery were reviewed at the Farabi Eye Hospital, Iran, from 2012 to March 2022. There were 1017 patients with sensory horizontal strabismus whose, in their worse eye, had corrected distance visual acuity (CDVA) equal to or <20/160 tested with the Snellen chart.
RESULTS: The mean age of patients was 29.0 ± 12.4 years [574 (56.4%) males and 443 (43.6%) females]. Sensory XT and ET were observed in 717 (70.5%) and 300 (29.5%) patients, respectively (P<.001). The mean CDVA in the strabismic and non-strabismic eyes was 1.40 ± 0.75 and 0.05 ± 0.13, respectively (P<.001). Also, the CDVA in the strabismic eyes was significantly worse in the patients with sensory XT than in the patients with sensory ET (P<.001). Sphere and spherical equivalent (SE) components were more hyperopic in both eyes of patients with sensory ET than sensory XT (P<.001). In sensory ET group, the mean horizontal deviation at far and near was significantly higher than the sensory XT group (both P<.001). The prevalence of moderate and severe amblyopia among all patients with sensory strabismus was 274 (26.9%) and 727 (71.5%), respectively (P<.001). There were 398 (39.1%) patients who needed more than one surgery.
CONCLUSIONS: The frequency of sensory XT was about 2.5 times more than the sensory ET. Most patients with sensory ET were operated at a younger age, had better CDVA, more hyperopic spherical and SE, and higher angle of deviation compared with patients with sensory XT. The chance of reoperation in patients with sensory strabismus was about 40%.
METHODS: In a retrospective study, the medical records of 13,252 patients who underwent strabismus surgery were reviewed at the Farabi Eye Hospital, Iran, from 2012 to March 2022. There were 1017 patients with sensory horizontal strabismus whose, in their worse eye, had corrected distance visual acuity (CDVA) equal to or <20/160 tested with the Snellen chart.
RESULTS: The mean age of patients was 29.0 ± 12.4 years [574 (56.4%) males and 443 (43.6%) females]. Sensory XT and ET were observed in 717 (70.5%) and 300 (29.5%) patients, respectively (P<.001). The mean CDVA in the strabismic and non-strabismic eyes was 1.40 ± 0.75 and 0.05 ± 0.13, respectively (P<.001). Also, the CDVA in the strabismic eyes was significantly worse in the patients with sensory XT than in the patients with sensory ET (P<.001). Sphere and spherical equivalent (SE) components were more hyperopic in both eyes of patients with sensory ET than sensory XT (P<.001). In sensory ET group, the mean horizontal deviation at far and near was significantly higher than the sensory XT group (both P<.001). The prevalence of moderate and severe amblyopia among all patients with sensory strabismus was 274 (26.9%) and 727 (71.5%), respectively (P<.001). There were 398 (39.1%) patients who needed more than one surgery.
CONCLUSIONS: The frequency of sensory XT was about 2.5 times more than the sensory ET. Most patients with sensory ET were operated at a younger age, had better CDVA, more hyperopic spherical and SE, and higher angle of deviation compared with patients with sensory XT. The chance of reoperation in patients with sensory strabismus was about 40%.
摘要：
目的：本研究旨在比较感觉内斜视（ET）和感觉外斜视（XT）患者的术前临床特征。
方法：在一项回顾性研究中，在Farabi眼科医院审查了13,252名接受斜视手术的患者的医疗记录，伊朗,从2012年到2022年3月。1017例感觉水平斜视患者，在他们最糟糕的眼中，用Snellen图表测试的校正远距视敏度(CDVA)等于或<20/160。
结果：患者的平均年龄为29.0±12.4岁[男性574（56.4％），女性443（43.6％）]。717例(70.5%)和300例(29.5%)患者均有感觉XT和ET,分别(P<.001)。斜视和非斜视眼的平均CDVA分别为1.40±0.75和0.05±0.13（P<0.001）。此外，感觉XT患者斜视眼的CDVA明显低于感觉ET患者（P<.001）。感觉ET患者双眼的球形和球形等效（SE）成分远视程度高于感觉XT（P<.001）。在感觉ET组中，远近的平均水平偏差均显著高于感觉XT组(P均<.001)。所有感觉性斜视患者中重度弱视患病率分别为274例(26.9%)和727例(71.5%),分别(P<.001)。有398名（39.1%）患者需要一次以上的手术。
结论：感觉XT的频率约为感觉ET的2.5倍。大多数有感觉性ET的患者手术年龄较小，有更好的CDVA，更多远视球形和SE，与感觉XT患者相比，偏离角度更高。感觉性斜视患者再次手术的机会约为40％。
方法：在一项回顾性研究中，在Farabi眼科医院审查了13,252名接受斜视手术的患者的医疗记录，伊朗,从2012年到2022年3月。1017例感觉水平斜视患者，在他们最糟糕的眼中，用Snellen图表测试的校正远距视敏度(CDVA)等于或<20/160。
结果：患者的平均年龄为29.0±12.4岁[男性574（56.4％），女性443（43.6％）]。717例(70.5%)和300例(29.5%)患者均有感觉XT和ET,分别(P<.001)。斜视和非斜视眼的平均CDVA分别为1.40±0.75和0.05±0.13（P<0.001）。此外，感觉XT患者斜视眼的CDVA明显低于感觉ET患者（P<.001）。感觉ET患者双眼的球形和球形等效（SE）成分远视程度高于感觉XT（P<.001）。在感觉ET组中，远近的平均水平偏差均显著高于感觉XT组(P均<.001)。所有感觉性斜视患者中重度弱视患病率分别为274例(26.9%)和727例(71.5%),分别(P<.001)。有398名（39.1%）患者需要一次以上的手术。
结论：感觉XT的频率约为感觉ET的2.5倍。大多数有感觉性ET的患者手术年龄较小，有更好的CDVA，更多远视球形和SE，与感觉XT患者相比，偏离角度更高。感觉性斜视患者再次手术的机会约为40％。
