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Intraocular pressure was normal in all of the study groups ; slit lamp biomicroscopy examinations revealed that no cells or fibrin formation in the anterior and posterior chamber with implants but flare , cells and fibrin was present in the topical drops group .
 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