Can Optometrists Prescribe Medicine? Understanding Their Prescribing Powers
Published on October 4, 2024
Key Takeaway
Optometrists in many states can prescribe certain medications for eye conditions, but their prescribing powers vary by location and are generally more limited than those of ophthalmologists.
Introduction
The field of optometry has evolved significantly over the past few decades, with optometrists taking on expanded roles in eye care. One of the most notable changes has been the ability of optometrists to prescribe medications in many jurisdictions. This article explores the current state of optometric prescribing powers, their limitations, and what this means for patients seeking eye care.
The Evolution of Optometric Prescribing Rights
Historically, optometrists were not allowed to prescribe medications. However, this has changed dramatically over the years. According to a 1998 study, within just 21 years, the number of states granting therapeutic optometric privileges reached 50. This rapid expansion of prescribing rights has significantly impacted the profession and patient care.

Current Prescribing Powers of Optometrists
Today, optometrists in most states can prescribe a range of medications for eye conditions. However, their prescribing powers are generally more limited than those of ophthalmologists. Here's what you need to know:
- Topical Medications: Optometrists can typically prescribe eye drops and ointments for conditions like dry eye, allergies, and some infections.
- Oral Medications: In many states, optometrists can prescribe certain oral medications, often for conditions like eye infections or inflammation.
- Glaucoma Treatments: Many optometrists are authorized to prescribe medications for glaucoma management.
- Controlled Substances: Some states allow optometrists to prescribe certain controlled substances, but this varies widely by location.
It's important to note that the specific medications optometrists can prescribe vary by state. A study comparing prescribing patterns found that while optometrists and ophthalmologists often prescribe similar medications for glaucoma, ophthalmologists tend to prescribe from a wider range of drug classes.
Comparing Optometrists and Ophthalmologists
While optometrists' prescribing powers have expanded, there are still significant differences between optometrists and ophthalmologists:
- Scope of Practice: Ophthalmologists, as medical doctors, generally have a broader scope of practice and can prescribe a wider range of medications.
- Surgical Procedures: Ophthalmologists can perform eye surgeries, while optometrists typically cannot.
- Complex Conditions: For more complex eye conditions, an ophthalmologist's expertise may be required.
Research has shown that ophthalmologists tend to prescribe a wider range of medications and treat more patients than optometrists, particularly in urban and suburban areas.

Impact on Patient Care
The expansion of optometric prescribing powers has had several positive impacts on patient care:
- Improved Access: More providers can now prescribe necessary eye medications, potentially improving access to care.
- Convenience: Patients can often receive diagnosis and treatment from their optometrist without needing a separate visit to an ophthalmologist.
- Cost-Effectiveness: A study suggested that optometrist participation could increase patient access to therapeutic ocular care by between 29% and 50%.
Limitations and Considerations
While the expansion of optometric prescribing powers has been generally positive, there are some limitations to consider:
- Variation by State: Prescribing powers can vary significantly between states, which can be confusing for patients.
- Ongoing Training: Optometrists must undergo additional training and certification to prescribe medications in most jurisdictions.
- Potential for Overuse: As with any prescribing authority, there's a need to ensure appropriate use of medications.
A study in Scotland found that while optometrist prescribing activity has increased steadily, it still only accounts for a small percentage of all ophthalmic items prescribed.
Conclusion
The ability of optometrists to prescribe medications has significantly expanded the scope of primary eye care. While their prescribing powers are generally more limited than those of ophthalmologists, optometrists can now manage a wide range of common eye conditions effectively. As a patient, it's important to understand the capabilities and limitations of your eye care provider. For routine eye care and many common conditions, an optometrist can likely provide comprehensive care, including necessary prescriptions. However, for more complex issues, collaboration with or referral to an ophthalmologist may be necessary. Always consult with your eye care professional to understand the best course of treatment for your specific needs.