Optometrist vs Ophthalmologist: What's the Difference?

Optometrist, ophthalmologist, optician: three similar-sounding job titles, three very different roles, and one of the questions patients ask me most often. The confusion is understandable, and getting it right matters, because it determines who you should book with, what Medicare will contribute, and how quickly the right person sees a problem.

Here’s the short answer. An optometrist is a university-trained primary eye-care clinician: the person who examines your eyes, prescribes glasses and contact lenses, and diagnoses and manages a wide range of eye conditions, including, in Queensland, prescribing the drops that control glaucoma. An ophthalmologist is a medical doctor who has gone on to specialise in eye medicine and surgery. Optometrists carry most of Australia’s day-to-day eye care; ophthalmologists operate, and look after the complex and sight-threatening end of eye disease.

The two professions are not rivals; they are two halves of the same system. Almost every patient in my theatre list arrived there because a skilled optometrist picked something up and referred them.

What an Optometrist Does

Optometry is a demanding university degree of around five years, and the scope of modern practice is broad. Most Australian optometrists are now therapeutically endorsed, which means they are qualified to prescribe topical eye medicines, the drops and ointments that treat a large share of eye disease.

In day-to-day practice, optometrists:

• performs comprehensive eye examinations and prescribes glasses and contact lenses
• detects disease early: glaucoma, cataract, macular degeneration, diabetic changes and corneal conditions such as keratoconus
• treats many common problems, such as acute infections, inflammation and dry eye, with prescription drops
• screens the eyes of people with diabetes and monitors them year to year
• monitors dry (atrophic) macular degeneration
• in Queensland, prescribes and adjusts the topical medications that control glaucoma, usually co-managing with an ophthalmologist
• knows exactly when something is beyond drops and glasses, and refers it on

That last point is the one I value most. Optometrists are the eyes of the whole system: they see the population, year in and year out, and sight is saved when a subtle change is spotted early and acted on. That is what optometrists do every day.

What an Ophthalmologist Does

An ophthalmologist’s path is different: a medical degree first, then years working as a doctor in hospitals, then a competitive specialist training program in eye medicine and surgery through RANZCO (the Royal Australian and New Zealand College of Ophthalmologists). All up, it usually takes more than a decade before someone is a consultant ophthalmologist.

That medical and surgical training is the point of difference. Ophthalmologists:

• perform eye surgery, which optometrists do not: cataract surgery, corneal transplants, laser vision correction, pterygium removal, glaucoma procedures and retinal surgery, and provide or oversee treatments such as the eye injections used for wet macular degeneration
• manage the complex and sight-threatening conditions: wet macular degeneration, diabetic retinopathy that needs treatment, progressing keratoconus, corneal disease, severe inflammation and eye trauma
• bring the full medical toolkit, from systemic medicines to hospital care, when an eye problem is part of a bigger health picture

Most of us also subspecialise. I’m a cornea, cataract and refractive surgeon, so my days are corneal transplants, keratoconus, pterygium and lens and laser surgery, while a retinal colleague looks after injections and retinal surgery. Referrals usually land with the subspecialist who fits the problem.

Optometrist or Ophthalmologist: Who Should You See?

A practical guide:

• Routine eye test, new glasses or contact lenses: optometrist.
• Dry, itchy or mildly irritated eyes: optometrist. This is bread-and-butter optometry, managed well with drops and advice.
• Diabetes: regular screening with an optometrist; an ophthalmologist takes over if retinopathy progresses to the point of needing treatment.
• Glaucoma: commonly detected and, in Queensland, controlled with topical medication by a therapeutically endorsed optometrist, co-managed with an ophthalmologist; laser or surgery, and disease that progresses despite drops, belong with the ophthalmologist.
• Macular degeneration: the dry form is monitored by your optometrist; sudden distortion or suspected wet macular degeneration needs an ophthalmologist urgently, because injections are time-critical.
• Cataract, keratoconus, corneal disease, pterygium, or laser and lens surgery: an ophthalmologist, with your optometrist usually making the diagnosis and sharing care before and after surgery.
• Sudden change in vision, new flashes and floaters, or a painful red eye: same-day advice. Your optometrist can often see you that day and will send you straight on if it is urgent.

What About Opticians?

The third title in the trio: an optical dispenser, or optician, fits, makes and adjusts glasses from a prescription. They do not examine eyes, prescribe, or treat eye conditions. If the question is who tests your eyes and writes the script, that is the optometrist; the optician is the craftsperson who turns the script into the glasses on your nose.

How Referral Works in Australia

To claim a Medicare rebate on a specialist’s consultation fee, you need a current referral, and both GPs and optometrists can provide one. In practice the optometrist is often the person who finds the problem, writes the referral and sends their scans along with it, which makes the first specialist visit far more useful.

So the honest answer to “ophthalmologist or optometrist?” is usually both, in order. Keep seeing your optometrist regularly; they are highly trained, they treat far more than most people realise, and they are the reason most serious eye disease gets caught early. And when the problem needs surgery or sits at the complex end of the spectrum, that’s where my side of the profession takes the baton.

If you’ve been referred for a cataract, a corneal condition or vision correction surgery, I’d be glad to see you.