1164
This is consistent with prior histopathological studies that show predominant loss of parvo - cellular axons ( or small - caliber axons ) within the papillo - macular bundle in toxic or hereditary optic neuropathies .
 Disease: optic neuropathies
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Disease, Chemical 
Text: {0} 
Answer:
 Disease: optic neuropathies