Relationship between clinical signs and symptoms of convergence insufficiency.
Relationship between clinical signs and symptoms of convergence insufficiency.
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DOI：
10.1097/opx.0000000000000012
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发表时间：
2013-09
期刊：
影响因子：
--
通讯作者：
CITT Study Group
中科院分区：
文献类型：
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作者：
Bade A;Boas M;Gallaway M;Mitchell GL;Scheiman M;Kulp MT;Cotter SA;Rouse M;CITT Study Group
研究表明，有症状的儿童百分比随着收敛不足 (CI) 迹象的数量而增加。我们的目标是调查 CI 临床体征的严重程度与 3 征症状 CI 儿童报告的症状水平之间是否存在关系。收敛不足治疗试验 (CITT) 招募了 221 名 9 至 17 岁有症状 CI 的儿童。纳入标准包括以下三个 CI 体征：(1) 近处的外隐斜比远处至少大 4Δ，(2) 近处的正融合聚散 (PFV) 不足，以及 (3) 近处会聚点 (NPC) 后退≥ 6cm 断裂。评估了每个 CI 体征的严重程度（轻度、中度和重度）与基线时收敛不足症状调查 (CISS) 测量的症状水平之间的关系。轻度、中度或重度外隐斜 (p=0.60)、PFV 模糊 (p=0.99)、Sheard 准则 (p=0.89) 或 NPC 断裂 (p=0.84) 之间的平均 CISS 评分没有显着差异。 CISS 评分为轻度、中度或重度水平的受试者频率以及每种 CI 体征的严重程度也没有差异。个体临床症状与 CISS 评分之间的相关性非常低，并且没有统计学意义。在 CISS 评分≥ 16 且有 3 种 CI 临床症状的有症状儿童中，临床症状的严重程度与其症状水平之间没有进一步的关联。
The percentage of children who are symptomatic has been shown to increase with the number of signs of convergence insufficiency (CI). Our goal was to investigate whether there is a relationship between the severity of the clinical signs of CI and symptom level reported in children with 3-sign symptomatic CI. The Convergence Insufficiency Treatment Trial (CITT) enrolled 221 children with symptomatic CI from ages 9 to 17 years. Inclusion criteria included the following three signs of CI: (1) exophoria at near at least 4Δ greater than at distance, (2) insufficient positive fusional vergence (PFV) at near, and (3) a receded near point of convergence (NPC) of ≥ 6cm break. The relationships between the severity of each sign of CI (mild, moderate and severe) and the level of symptoms as measured by the Convergence Insufficiency Symptom Survey (CISS) at baseline were evaluated. Mean CISS scores were not significantly different between mild, moderate or severe exophoria (p=0.60), PFV blur (p=0.99), Sheard's criterion (p=0.89) or NPC break (p=0.84). There was also no difference in the frequency of subjects scoring at mild, moderate or severe levels on the CISS and the severity of each sign of CI. Correlations between individual clinical signs and the CISS score were very low and not statistically significant. Among symptomatic children with a CISS score ≥ 16 and three clinical signs of CI, there is no further association between the severity of the clinical signs and their level of symptoms.