Intersting, your dad is blind, and you want to become an optometrist? Why not a researcher? It's obvious you mentioned his condition because you want to validate your reason for becoming an optometrist, but people don't have to have an inherent calling to do something. We all choose dentistry for many reasons, namely: prestige, alternative to MD, money, hours, genuine intrest in teeth, etc. If I were to tell you that my father was born with no teeth, would that validate me?