17188
In all five carriers examined , qualitative and quantitative analyses by AO SLO imaging revealed a mosaic pattern of cone disruption , even in the absence of visual symptoms , normal visual acuity and normal macular thickness , on optical coherence tomography and mildly subnormal full - field cone electroretinographic findings .
 None
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
Answer:
 None