title: Direct visualization of heterophorias through a unidirectional occluder.
abstract: A new occluder to perform the cover test allows visualization of the covered eye through the occluder and direct observation of heterophorias. The occluder is composed of an aluminium-polyester filter mounted on a support in front of a 2.2-V light bulb.
authors: Department of Ophthalmology, Hospital Clinico de San Carlos, Madrid.
authors: A A
authors: AA
authors: Vila-Coro
authors: A A
authors: AA
authors: Vila-Coro
mesh_terms: D006801:Humans; D009885:Ophthalmology / Q000295:instrumentation*; D013285:Strabismus / Q000175:diagnosis*