An optometrist is a healthcare professional specializing in eye care, crucial for diagnosing vision issues and managing eye diseases. Key responsibilities include conducting eye exams, prescribing glasses or contact lenses, and educating patients on ocular health. A Doctor of Optometry degree and state licensure are required. Typically working in clinics or hospitals, they collaborate with ophthalmologists and support staff. Career progression can lead to specialization, research roles, or practice ownership, emphasizing continual learning and advancement opportunities in the field.