What to Expect at Your Ophthalmology Appointment

What an ophthalmologist does differently from an optometrist

An ophthalmologist is a medical doctor who specializes in eye health and can diagnose and treat eye diseases, perform eye surgery, and prescribe glasses or contacts. The key difference from an optometrist is their medical training: ophthalmologists complete medical school and a residency in ophthalmology, usually four to five years after medical school. This means they can manage conditions like glaucoma, cataracts, diabetic retinopathy, and macular degeneration, and they can perform procedures like LASIK or cataract removal.

You might be referred to an ophthalmologist by your primary care doctor, your optometrist, or you might schedule directly if you have a known eye condition or need surgery. Some people see both: an optometrist for routine eye exams and glasses, and an ophthalmologist when a medical issue comes up. Your appointment will likely focus on a specific problem or condition rather than a general checkup, though the doctor will still assess your overall eye health.

Key Takeaways

• Bring your insurance card, photo ID, and a list of all medications you take, including eye drops you use at home.
• The appointment usually includes vision testing, eye pressure measurement, and a dilated eye exam where the doctor puts drops in your eyes to see the back of the eye.
• Dilation makes your vision blurry and your eyes sensitive to light for several hours, so arrange to have someone drive you or plan to wait before driving yourself.
• The ophthalmologist will explain what they found and discuss treatment options, which may include medication, laser treatment, or surgery depending on your condition.
• Bring sunglasses or ask the office for disposable ones after dilation, because your pupils will be enlarged and bright light will be uncomfortable.

What to bring and how to prepare

Bring your insurance card and a photo ID. If you have had eye exams or procedures at other offices, ask those offices to send your records to the ophthalmologist ahead of time — this saves time and gives the doctor context about your eye history. If you wear glasses or contacts, bring them with you, even if you do not plan to wear them during the exam.

Write down all medications you take, including over-the-counter drugs, supplements, and any eye drops you use. Some medications affect eye pressure or interact with dilating drops, so the doctor needs to know what you are on. If you have had any eye surgery, injuries, or laser treatments before, mention those too. If you are coming for a specific problem — floaters, flashes of light, blurred vision, eye pain — write down when it started and what makes it better or worse.

Do not wear eye makeup on the day of your appointment if possible, because the doctor will need to examine your eyelids and the area around your eyes closely. If you do wear it, bring makeup remover or be prepared to wash your face in the office bathroom. Wear comfortable clothing and avoid anything tight around your neck, since you will be leaning back in the exam chair.

The dilated eye exam and what happens during it

Most ophthalmology appointments include a dilated eye exam, where the doctor puts numbing drops in your eyes first, then dilating drops that make your pupils open wide. This allows the ophthalmologist to see the retina, optic nerve, and blood vessels at the back of your eye without using invasive equipment. The numbing drops sting slightly for a few seconds, and the dilating drops take about 20 to 30 minutes to fully work.

Before dilation, you will usually have your vision tested — the doctor will ask you to read letters on a chart, starting with large letters and getting smaller. You may also have your eye pressure measured with a device called a tonometer, which either blows a puff of air at your eye or gently touches the surface after numbing drops. This pressure test is important for screening for glaucoma. Some offices also use optical coherence tomography (OCT), a scanner that takes detailed images of the layers of your eye and optic nerve.

Once the dilating drops take effect, the doctor will use a special magnifying lens and a bright light to examine the back of your eye. You will see bright flashes and may feel the doctor's hand near your face, but you will not feel pain. The exam usually takes 10 to 15 minutes. After dilation, your vision will be blurry and your eyes will be very sensitive to light for the next four to six hours.

Why you should not drive after dilation

Dilating drops enlarge your pupils so much that your eyes cannot focus properly on near or far objects, and bright light causes discomfort and glare. This makes it unsafe to drive, especially if you are on a highway or in heavy traffic. Most ophthalmologists recommend that you arrange a ride before your appointment or plan to wait in the office or a nearby location until your vision clears.

If you drove yourself and did not expect to be dilated, ask the office staff if you can wait, or call someone to pick you up. Some offices have a waiting area where you can rest for an hour or two. Bring sunglasses or ask the office for disposable ones — they will have them available. If you absolutely must drive and your vision has not fully returned, drive slowly on familiar, well-lit routes and avoid highways.

Understanding your results and next steps

Before you leave, the ophthalmologist will explain what they found during the exam. If you have a condition like glaucoma, diabetic retinopathy, or age-related macular degeneration, the doctor will describe what it is, how it affects your vision, and what treatment options are available. Treatment might be as simple as eye drops to lower pressure, or it might involve laser treatment or surgery. The doctor will also tell you how often you need to return for follow-up exams.

If you need glasses or a new prescription, the doctor will give you a prescription to take to an optician or eyewear store. If you need medication, the doctor will write a prescription and explain how to use it — for example, how many times a day to put in eye drops and which eye or eyes to treat. Ask about side effects and what to do if the medication irritates your eyes.

If the ophthalmologist recommends surgery or a procedure like laser treatment, they will explain what it involves, what the risks and benefits are, and how to prepare. You may schedule the procedure that day or at a follow-up visit. Ask how long recovery takes and when you can return to normal activities like exercise or swimming.

Common procedures you might have during the visit

Depending on your condition, the ophthalmologist may perform additional tests or minor procedures in the office. Visual field testing measures your peripheral vision and helps detect glaucoma; you sit at a machine and click a button when you see flashes of light. Gonioscopy uses a special lens to examine the drainage angle of your eye, also for glaucoma screening. Fundus photography takes pictures of the back of your eye so the doctor can track changes over time.

If you have a floater or flashes of light, the doctor may perform B-scan ultrasound, which uses sound waves to image the inside of your eye and rule out retinal detachment. If you have dry eye, the doctor may do a Schirmer test, which measures how much tears your eyes produce. None of these procedures are painful, though some feel slightly uncomfortable. The doctor will explain what each one is for before starting.

What to do if you have side effects from the dilating drops

Most people tolerate dilating drops well, but some experience temporary side effects. Blurred vision and light sensitivity are normal and fade within a few hours. Some people feel a slight headache or mild eye irritation. If you have a history of angle-closure glaucoma or narrow angles in your eyes, tell the doctor before they put in dilating drops, because these drops can trigger an acute attack in rare cases.

If you experience eye pain, a sudden change in vision, or severe headache after dilation, contact the ophthalmologist or go to an urgent care or emergency room. These symptoms are uncommon but need prompt attention. If you simply feel uncomfortable with the blurriness or light sensitivity, staying in a dim room and wearing sunglasses will help until the drops wear off.

Frequently Asked Questions

Do I need to dilate my eyes every time I see an ophthalmologist?

Not always. If you are coming for a minor issue like a prescription update or to check on a known condition that is stable, the doctor may skip dilation. However, if you have not been dilated in a while, have diabetes, or have a condition that affects the retina, dilation is usually recommended. Ask ahead of time if you want to know whether to expect it.

Can I wear my contacts during the appointment?

You can wear them when you arrive, but the doctor will ask you to remove them before the exam because they interfere with the view of your eye. Bring a contact lens case and solution, or ask the office if they have a case available. If you wear contacts and need a new glasses prescription, the doctor will write one for you.

How long does an ophthalmology appointment usually take?

Plan for 45 minutes to an hour and a half. The actual exam is often 15 to 30 minutes, but you will spend time in the waiting room, having preliminary tests done by a technician, and waiting for dilating drops to take effect. If the doctor is running behind or you need additional testing, it may take longer.

Will the ophthalmologist tell me if I need surgery right away?

The doctor will tell you if surgery is recommended and discuss the timeline. Some conditions need urgent surgery — like retinal detachment — and the doctor will refer you to a surgical center immediately. Other conditions like cataracts can be scheduled weeks or months out. The doctor will explain the urgency and help you understand your options.

What if I am nervous about eye exams?

Tell the staff when you check in. Many people are anxious about having their eyes touched or examined closely. The doctor and technicians are used to this and can go slowly, explain each step, and give you breaks if you need them. Let them know if you have had a bad experience before so they can work with you.