The Essentials of CCNA Routing and Switching Webinar Series. Learn more about the exciting redesign of the CCNAÂ® Routing and Switching certification. CCNA R&S Training Videos. Preview CCNA R&S training videos that are offered as part of a Cisco Learning Network Premium subscription.
Explore Optometry. Home / Education / Admissions / Explore Optometry. A Doctor of Optometry (OD) is an independent, primary health care provider who examines the visual system, the eye and associated structures, as well as diagnoses, treats and manages related diseases and disorders. Optometry involves much more than prescribing and fitting glasses and contact lenses.
Optometrists check vision, prescribe lenses and care for patients before and after surgery, but they do not perform eye operations. An optometrist needs undergraduate preparation, a Doctor of Optometry degree and a state license.