297147
Awareness to early changes in vision , especially in high risk patients , leads to early treatment ( such as intravitreal injection of anti-VEGF factors , e.g. bevacizumab or ranibizumab ) and prevents loss of vision .
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Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
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