If I have eye sight, am I eligible to apply AME CET, and can I perceive aerospace engineering
Yes you are eligible to apply for AME CET as it's eligibility criteria no where says anything about eyesight. That being said, you may pursue aerospace engineering and it has a good scope all around the world considering the ever growing aviation industry.
You should definitely apply for the exam and keep going with your preparation for the same.
All the very best for your future.