Which healthcare professionals have prescribing authority for contact lenses only?

The correct answer is that optometrists have prescribing authority for contact lenses only. Optometrists are specifically trained in eye care and vision health, which includes the ability to prescribe corrective lenses, including contact lenses. They complete rigorous education primarily focused on the diagnosis and management of eye disorders, enabling them to assess patients' vision needs and prescribe appropriate treatments.

While other healthcare professionals may have various privileges related to prescribing in their respective fields, optometrists are unique in their specialization regarding vision and eye health, making them the primary professionals authorized to prescribe contact lenses. Other options listed, such as certified nurse midwives, podiatrists, and veterinarians, have their own respective scopes of practice but do not specialize in or hold authority specifically for prescribing contact lenses.