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lights_on_off_test [2025/06/18 18:40] – Scott Larsonlights_on_off_test [2025/06/21 05:42] (current) – Scott Larson
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 ====== Lights On-Off Test ====== ====== Lights On-Off Test ======
-FIX ME 
-<wrap round box>Adapted from De Pool ME. et al. The Dragged-Fovea Diplopia Syndrome: Clinical Characteristics, Diagnosis and Treatment. Ophthalmology 2005;112:1455-1462 </wrap>  
- 
 a.k.a.  Small field central fusion test 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+  * This test is useful in the setting of diplopia in the presence of a dragged fovea causing diplopia giving central-peripheral rivalry 
 +  * Use a single white letter on a black monitor about 20/70 in size 
 +  * Must have a very dark room and no light bleeding through an LCD monitor 
 +  * The patient sees diplopia when fixating on the letter with the lights on 
 +  * With the lights off, the diplopia resolves
  
 +{{ ::lights_on_off_test.jpg?|}}
  
 +<wrap round box>from [[ https://1drv.ms/b/c/31d83ae8e55e0542/EfdNd4vxVu1GvodwCzzwIrcB_IV0M-VkU0jFRJ27OCTUoQ?e=mPWISz |De Pool ME. et al. The Dragged-Fovea Diplopia Syndrome: Clinical Characteristics, Diagnosis and Treatment. Ophthalmology 2005;112:1455-1462]] </wrap> 
  
  
  
 {{tag>test strabismus}} {{tag>test strabismus}}