Optometry is a healthcare profession focused on eye and vision care. Optometrists are primary healthcare practitioners of the eye who provide comprehensive eye exams, detect diseases, manage vision conditions, and prescribe corrective lenses or vision therapy. The profession began over 100 years ago with the development of vision science, optics, and optical instruments. Today, optometrists utilize their knowledge of ocular science, disease diagnosis, visual rehabilitation and more to care for patients' eye health and vision needs.