This is an old revision of the document!
Lights On-Off Test
FIX ME
a.k.a. Small field central fusion test This test is useful in the setting of diplopia in the presence of a dragged fovea causing diplopia giving central-peripheral rivalry
see De Pool ME. et al. The Dragged-Fovea Diplopia Syndrome: Clinical Characteristics, Diagnosis and Treatment. Ophthalmology 2005;112:1455-1462