弱视镜
Keywords synoptophore;Haidinger brush（light brush）;polarimeter;amblyoscope;tropscope; 同视机;海丁格刷（光刷）;偏振片;弱视镜;斜视;
major amblyoscope 大型弱视镜
Wheatstone amblyoscope 韦特斯顿弱视镜
Wheatstone's amblyoscope 惠斯顿(氏)弱视镜
