Gaze is related to Observe. Observe is a synonym of Maintain. Maintain is a synonym of Keep. 
Screen is a type of Analyze. Blind is a type of Screen. Blind is the opposite of Look. Look is a synonym of Attend. 
Gaze <--RelatedTo--> Observe <--Synonym--> Maintain <--Synonym--> Keep 
Analyze <--IsA-- Screen <--IsA-- Blind <--Antonym--> Look <--Synonym--> Attend 