To correct for optical imperfections in the Eyes, allowing the wearer to see clearer.
Technically, yes, but the reader will stumble. "He escapes to the forest" would be clearer.
Your question does not make much sense. You are are asking if "u" is a correct word, the answer is no. The correct word is "you". If that was not your question, please re-ask it a bit clearer.
No, the correct phrasing would be "When 'you' arrived, she had already left." By adding the comma after "arrived," the sentence is clearer and reads more smoothly.
Lion eating a deer is correct, Lotus growing in a lake is correct.
I think it is. But it would be clearer to say "China has a bigger population than India"
The answer is clearer.
Not really. The "himself" is redundant. "The doctor offered some help" is clearer.
The correct spelling is "flourishing" (growing, prospering).
That is correct.
It is the opinion of the sentence writer that the brand "Reel Sound" provides a louder, clearer sound than other brands of headphones. The sentence is correct because it's referring to the brand "Reel" Sound, not "real" sound.
Blinking - to protect the eye from something flying towards it. Pupil growing smaller - to obtain less light in the eye so you are not blinded Pupil growing larger - to obtain more light so you can see clearer