Optometry relates to the study of the structure, function and working of the human eye. Optometrists or optometric physicians are primary eye care and health professionals concerned with vision care. They undertakes examination, diagnosis and treatment of eyes, vision screening (eye testing), diagnosis of visual problems, orthoptics and vision training, optometric counseling of patients with partial sight, colour blindness and hereditary vision defects. Their work also include visual, optical symptoms, refractive errors and their correction, using lenses and other optical aids. In India the demand for optician is on an increasing verge. Ophthalmologists (Eye M.D's) are trained physicians specialized in eye and vision care who perform eye surgery, as well as diagnose and treat eye diseases and injuries. It is a dynamic and challenging career which could achieve personal growth, community respect and offers job flexibility, financial success and unlimited opportunities.