Optometrists and ophthalmologists are both eye doctors, but they are different careers.
An optometrist holds a Doctor of Optometry (O.D.) earned in a four-year optometry program; an ophthalmologist is a physician with a medical degree plus years of internship and residency, whose treatment range includes surgery.
This guide compares the two as careers: training time, scope, pay, debt, day-to-day work and switching between them.
What is the difference between an optometrist and an ophthalmologist?
The short version: an optometrist is a doctor of optometry, and an ophthalmologist is a physician.
BLS's typical-duty list for optometrists leads with vision tests: diagnosing refractive errors and eye diseases such as glaucoma, prescribing glasses, contact lenses and other visual aids, along with vision therapy or low-vision rehabilitation and minor surgical procedures and medications as permitted by state law.
An ophthalmologist diagnoses and treats eye conditions, and that treatment may include surgery to correct vision problems or to prevent vision loss from glaucoma and other diseases.
Ophthalmologists may also fit eyeglasses and prescribe contact lenses, so the surgical scope sits on top of refractive care rather than beside it.
BLS draws the headline line the same way: ophthalmologists perform a wider range of surgeries than optometrists do.
The licenses differ.
All states require optometrists to be licensed — an accredited O.D. degree plus all sections of a qualifying exam, with some states adding an exam on clinical skills or on optometry law — followed by continuing education and periodic renewal.
Where the doctor question comes up in hiring and billing: under Social Security Act section 1861(r)(4), Medicare treats a doctor of optometry as a physician, but only for limited purposes and only for services the OD is legally authorized to perform by the state.
An OD is not a medical doctor; the physician's path runs through medical school and residency, as the next section covers.
BLS also distinguishes a third eye care profession from both: opticians, who fit and adjust eyeglasses and, in some states, fill contact lens prescriptions.
For the optometry side in full — settings, specialties, licensing and pay — see our optometrist career guide.
How long does each take: optometry school vs medical school and residency?
The optometry path runs: at least 3 years of undergraduate education before applying — applicants to O.D. programs typically hold a bachelor's degree — then the entrance exam covering natural sciences, reading comprehension, physics and quantitative reasoning (the OAT), then a 4-year O.D. program.
After the degree, residency is optional: 1 year of advanced clinical training in areas such as primary care, cornea and contact lenses, and ocular disease.
Optometrists who skip it go straight into licensure and practice, because residency is optional for licensure.
The physician path is longer on paper.
Per BLS, physicians and surgeons typically need a bachelor's degree plus a medical degree, which takes an additional 4 years, and then 3 to 9 years in internship and residency programs depending on specialty, with 1 to 3 more years for a fellowship.
On BLS's telling, that internship and residency stretch is part of the typical path, while optometry's residency year is optional.
One caveat we state plainly because it matters for planning: BLS publishes the residency range across physician specialties but does not break out ophthalmology's own residency length.
Exact year counts you may have seen quoted for ophthalmology training are not BLS data, and they are not in the research verified for this page.
On the optometry side, licensure follows the degree: every state requires optometrists to be licensed, which takes the accredited O.D. plus all sections of a qualifying exam, and some states add a clinical-skills or optometry-law exam.
Continuing education and periodic renewal follow.
What can each do: scope, surgery and lasers?
Start with the duty lists.
For optometrists, BLS's duty list runs long: vision tests; diagnosing refractive errors and eye diseases such as glaucoma; prescribing glasses, contacts and visual aids; and minor surgical procedures and medications as permitted by state law.
It also lists vision therapy or low-vision rehabilitation, pre- and post-operative care, and screening for diseases such as diabetes with referral.
Pre- and post-operative care appears as its own item — work around surgery is in the career description, separate from the state-law question of who performs the procedure.
For ophthalmologists, BLS describes diagnosing and treating eye conditions, with treatment that may include surgery to correct vision problems or to prevent vision loss from glaucoma and other diseases, and notes they may also fit eyeglasses and prescribe contact lenses.
The scope headline stays BLS's: ophthalmologists perform a wider range of surgeries than optometrists do.
Prescribing is the other axis.
All states allow optometrists to prescribe medication, but states vary in which medications an OD may prescribe and in whether an OD may perform surgery or other procedures, such as providing vaccinations.
Whatever the job title, the state's optometry law draws the line you practice inside.
Laser procedures show how sharp those state lines are.
Per the American Optometric Association's count, 17 states had authorized optometric laser procedures as of June 2026, when Vermont's law became the 17th.
Two of the newest phase in later: most provisions of Tennessee's law take effect January 1, 2028, and Vermont's specialty license starts July 1, 2028.
Which procedures, in which states, under which state certification is a state-by-state question — this page compares careers, not statutes.
Scope of practice is state law
How do pay and debt compare?
BLS's May 2025 wage data put the two medians a long way apart: $300,080 for ophthalmologists, except pediatric (SOC 29-1241), versus $136,570 for optometrists (SOC 29-1041).
Both are medians — the midpoint of each occupation's wages — not what any one doctor earns.
Read the labels before you read the gap.
The optometrist figure is a payroll (OEWS) median: it covers wage-and-salary ODs and excludes self-employed optometrists, including practice owners and many sublease ODs, whose income is not in the wage data.
Around that median, the lowest-paid 10 percent of optometrists earned less than $74,870 and the highest-paid 10 percent earned more than $202,180.
The ophthalmologist figure covers the BLS row ophthalmologists, except pediatric — a labelled subset of the profession, not all of it.
Debt runs the other way, and the optometry side has a solid number.
ASCO's Annual Student Data Report 2025-26 put the average educational indebtedness of 2024-25 OD graduates who had debt at $209,280 — graduate and professional debt only, excluding undergraduate debt.
Of the graduates reported, 78.6 percent carried debt, and averaging across every reported graduate brought the figure to $164,575.
The debt figures cover U.S. citizen and permanent-resident financial aid applicants only, and not every school reports.
ASCO's report covers optometry only: we did not verify a medical-school debt figure for this page, so ask the medical schools and financial aid offices you are considering for their current numbers.
The training-length point survives the missing number.
The physician path adds four years of medical school and then years of internship and residency before full practice, while optometry's optional single residency year is the only add-on to its four-year degree.
So weigh the years before full practice and the debt you would carry against the pay gap, not salary against salary.
What do workdays and lifestyle look like?
For optometrists, BLS's schedule picture is simple: most work full time, part-time work is common, and schedules may include evenings and weekends.
BLS publishes no hours-per-week figure for the occupation.
Survey data adds texture, with the sample caveat attached.
In a 2025 peer-reviewed survey of 1,436 U.S. optometrists, respondents spent a mean of 4.0 days a week in clinic; 52.9 percent saw on average 0-9 patients per half day and 43.1 percent saw 10-19.
The sample is self-selected and skews toward residency-trained ODs, so read those as survey findings, not workforce averages.
The same survey also compared settings, and the ranking is useful career information.
Burnout was highest among ODs in hospital-based (62.5 percent), integrated-care (62.4 percent) and ophthalmology-department (61.1 percent) settings.
It was among the lowest in small private practice (49.8 percent), solo practice (49.6 percent), large private practice (48.7 percent) and academic optometry (50.3 percent).
The subgroups are small, so treat the split as descriptive — but note who sits in the high column: optometrists practicing inside ophthalmology departments and integrated-care settings.
For ophthalmologists, the material verified for this page describes duties rather than hours: diagnosing and treating eye conditions, with surgery inside the treatment range.
We did not verify schedule data for ophthalmologists, so we will not quote one — ask physicians in the specialty you are considering about their real patterns.
Which career should you choose?
Neither career is better; they optimize for different things.
The trade-offs the verified facts support:
- Scope you want to hold. If performing a wide range of eye surgery is the goal, that is the ophthalmologist's side of BLS's line. If you want the duty list above — vision tests and refractive care, disease management within your state's scope, pre- and post-operative care — that list is the optometrist's career.
- Years you can spend training. Four years of optometry school with an optional residency year, against a medical degree plus 3 to 9 years of internship and residency and possibly 1 to 3 more for a fellowship.
- Cost and debt. ASCO's $209,280 average for indebted 2024-25 optometry graduates, with no verified medical-school debt figure to set beside it — weigh it against the pay gap in the section above.
- Field size. BLS's projection count has about 45,100 optometrist jobs in 2025, growing 10 percent to 49,400 by 2035 (much faster than average) with about 2,000 openings a year, against about 9,700 ophthalmologist jobs growing 5 percent to 10,200 by 2035. Both projection counts include the self-employed, unlike the payroll optometrist wage figure above, and they work out to roughly one ophthalmologist job for every 4-5 optometrist jobs.
Where you want to practice matters too, because state scope law shapes what an optometrist can do in that state.
Weigh the four trade-offs against the life you want, then talk to people living each: associates and owners on the optometry side, residents and attendings on the physician side.
Can an optometrist become an ophthalmologist?
BLS's published physician path has no optometry shortcut in it.
Physicians need a bachelor's degree plus a medical degree and then 3 to 9 years of internship and residency depending on specialty, and an O.D. appears in none of those steps.
In training terms, an optometrist weighing the switch applies to medical school — the degree sits outside the physician path, not inside it.
How individual medical schools treat prior optometry coursework is not something we verified, so ask each school's admissions office directly before you plan around an assumption.
What the verified record does show is where the two careers meet in practice.
The 2025 optometrist survey listed ophthalmology-department settings among the places its respondents practiced, and the OD duty list includes pre- and post-operative care — the work that surrounds surgery.
Read side by side, BLS's two duty lists describe the division: optometrists carry the vision tests, refractive care and pre- and post-operative work, and ophthalmologists add the wider surgical range.
Career information, not medical, licensing or legal advice. Scope of practice, licensure and training requirements are set by state boards and schools — confirm specifics with the state board of optometry where you practice or plan to practice, and with each school's admissions office.