along with what everyone else said... there IS a reason why doctors get the respect (and salary) they do. because they work HARD. whatever you choose to do, I hope you won't be risking other people's lives or vision because you wanted an easy way out.
not to mention, if you only do 2 hours of studying a day in undergrad, you either: (a) don't have the grades to get into any pre-professional school, (b) don't have the will power to do well if you DID get there, (c) are only a freshman/sophomore who hasn't hit his harder bio/chem/physics classes yet.
with your mentality, I highly suggest taking some time off after undergrad to get some working experience to realize how much work really does go into being a professional in any field.