4069
Examinations , including blood pressure , pulse rate , conjunctiva and cornea , intraocular pressure ( IOP ) , pupil diameter , basal tear secretion and margin reflex distance of both upper and lower eyelids , were performed prior to entry and at 1 , 3 , 5 and 7 hours after instillation .
 None
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: Disease, Chemical 
Text: {0} 
Answer:
 None