Rutstein R P, Daum K M
University of Alabama, School of Optometry/Medical Center, Birmingham 35294.
J Am Optom Assoc. 1987 Jul;58(7):548-54.
Despite the close association of convergence and accommodation, accommodative dysfunction is not often associated etiologically with exotropia. We studied 13 adolescent and young adults having intermittent exotropia and severely reduced accommodative function. Most patients had a prolonged history of visual symptoms that had not responded to therapy in the past. Clinical testing indicated that the patients had severely reduced amplitudes of accommodation and difficulty sustaining accommodation. Exotropia was manifest when the accommodative response was inadequate; relative orthophoria existed when the accommodative response was adequate. Treatment of the accommodative defect as well as the strabismus was successful for some patients. We recommend careful evaluation of accommodation for adolescent and young adults with exotropia to rule out an accommodative defect as a contributing cause.
尽管集合与调节密切相关，但调节功能障碍在病因学上并不常与外斜视相关。我们研究了13例患有间歇性外斜视且调节功能严重减退的青少年和青年成人。大多数患者有长期的视觉症状病史，过去对治疗无反应。临床检查表明，这些患者的调节幅度严重降低，且难以维持调节。当调节反应不足时外斜视明显；当调节反应充足时则存在相对正位。对一些患者而言，治疗调节缺陷以及斜视是成功的。我们建议对患有外斜视的青少年和青年成人进行仔细的调节评估，以排除调节缺陷作为一个促成因素。
