The Binocular Gauge (often referred to as the RAF Binocular Gauge or RAF Convergence Rule) is a clinical instrument used in ophthalmology and orthoptics to measure near point of convergence (NPC), amplitude of accommodation (A of A), and ocular dominance. It is widely used for binocular vision testing, particularly in strabismus and accommodation assessments.

  双眼测量尺（常称RAF双眼测量尺、RAF集合尺）是眼科与眼肌临床常用器械，用于测量集合近点(NPC)、调节幅度(AOA) 以及眼优势。广泛应用于双眼视功能检查，尤其适用于斜视与调节功能评估。（机器翻译）