1. (verb) make dim or indistinct

• blur

2. (adjective) tired to the point of exhaustion

• blear-eyed
• bleary
• bleary-eyed

1. (verb) make dim or indistinct

• alter
• change
• modify

1. (adjective) tired to the point of exhaustion

• tired

1. (verb) make dim or indistinct

• blur
• fuzz

1. (verb) make dim or indistinct

• focalise
• focalize
• focus
• sharpen