Zipf R F
Arch Ophthalmol. 1976 Mar;94(3):401-5. doi: 10.1001/archopht.1976.03910030189003.
The binocular fixation pattern (BFP) is a convenient clinical test that may be used to diagnose strabismic amblyopia in children who are too young to cooperate with conventional testing of visual acuity. A retrospective analysis of amblyopic and nonamblyopic patients with esotropia and exotropia demonstrates the effectiveness of the BFP in detecting strabismic amblyopia in children under 4 years of age. Amblyopic patients with either esotropia or exotropia reliably demonstrate strong grades of preference. Nonamblyopic patients with esotropia or exotropia usually demonstrate weak grades of fixation preference, with the important exception that most patients with small angles of esotropia have strong fixation preference even in the absence of amblyopia.
双眼注视模式（BFP）是一种便捷的临床检查方法，可用于诊断那些年龄过小而无法配合传统视力测试的儿童的斜视性弱视。一项对患有内斜视和外斜视的弱视和非弱视患者的回顾性分析表明，BFP在检测4岁以下儿童的斜视性弱视方面是有效的。患有内斜视或外斜视的弱视患者可靠地表现出强烈的偏好程度。患有内斜视或外斜视的非弱视患者通常表现出较弱的注视偏好程度，但重要的例外是，大多数小角度内斜视患者即使在没有弱视的情况下也有强烈的注视偏好。
