Tell me more about an Ophthalmologist?

i ask myself everyday what do i want to be in life? Will i been looking at being a pediatric nurse to a pharmacist to a Ophthalmologist. Can some one tell me more about an Ophthalmologist im doing some Research as you read this today. So if u can tell me more about what they do, the hardest part in being a Ophthalmologist, and how many yrs of intern schooling etc. Thank you . and if you are a Ophthalmologist whats your likes and dislikes was it hard to get where you are at today as far as schooling? What school is best for Ophthalmologist?