What to Expect at Your Eye Appointment and How to Prepare

What happens during a routine eye exam

A routine eye appointment typically lasts 30 to 60 minutes and includes several standard tests. The eye doctor (either an optometrist or ophthalmologist) will check your vision using an eye chart, measure the pressure inside your eye, and examine the structures at the front and back of your eye with specialized equipment. You will also read through a series of lenses to find your current prescription.

The doctor may dilate your pupils using eye drops so they can see the retina and optic nerve more clearly. This makes your vision blurry and sensitive to light for a few hours afterward, so plan to wear sunglasses or have someone drive you if dilation is part of your exam. Not every appointment includes dilation — your doctor will tell you beforehand whether to expect it.

If you have specific concerns like dry eyes, floaters, or trouble seeing at night, mention them at the start of the appointment. The doctor may run additional tests based on your symptoms or medical history.

Key Takeaways

• Bring your insurance card, photo ID, and a list of current medications, because some eye conditions are linked to systemic health issues.
• Arrive 10 to 15 minutes early to complete intake paperwork, which asks about your vision history and family eye disease.
• If your pupils will be dilated, arrange for someone to drive you home or plan to wait several hours before driving yourself.
• Your prescription may change even if your vision feels the same, so expect to discuss new glasses or contact lenses if the doctor finds a shift.
• Eye exams can detect early signs of diabetes, high blood pressure, and high cholesterol, so be honest about your health history.

What to bring and how to prepare

Bring your insurance card and a photo ID to every appointment. If you have vision insurance separate from your medical insurance, bring both cards. Have your current glasses or contact lens prescription available if you know it — you can find it on your glasses or on a previous receipt from your eye doctor.

Write down any medications you take regularly, including over-the-counter drugs and supplements. Some medications affect eye health or interact with dilating drops, so the doctor needs an accurate list. If you have a family history of glaucoma, macular degeneration, or blindness, mention it during your appointment.

Arrive 10 to 15 minutes early. You will fill out a form asking about your vision history, any eye problems you have had, and whether you have diabetes, high blood pressure, or other conditions. Answer these questions carefully — eye disease often has no symptoms until it is advanced, and your doctor uses this information to decide which tests to run.

Understanding your new prescription

If your prescription changes, your eye doctor will give you a written prescription you can use at any glasses or contact lens retailer. The prescription includes your sphere power (how strong your lenses need to be), your cylinder and axis (if you have astigmatism), and your pupillary distance (the space between your pupils). For reading glasses or bifocals, it also includes an "add" power for close-up vision.

You do not have to buy glasses or contacts from your eye doctor's office. You can take your prescription to any optical shop, online retailer, or big-box store. Prices vary widely, so it is worth comparing. If you wear contacts, your prescription includes the brand, base curve, and diameter — you cannot substitute a different brand without a new fitting.

A new prescription is usually valid for one to two years, depending on your state and your eye doctor's policy. After that, you will need another exam to get an updated prescription.

When to schedule an eye appointment

Adults with no eye problems or risk factors should have an eye exam every one to two years. If you have diabetes, high blood pressure, a family history of eye disease, or wear contact lenses, your doctor may recommend annual exams or more frequent visits. After age 60, many eye doctors recommend yearly exams because the risk of glaucoma and macular degeneration increases.

Schedule an appointment right away if you experience sudden vision changes, eye pain, flashing lights, new floaters, or a shadow in your peripheral vision. These can signal a serious condition that needs prompt attention. Do not wait for your regular appointment if you have these symptoms.

If you have not had an eye exam in more than two years, or if you are starting a new medication that affects vision, contact an eye doctor to schedule one. Many insurance plans cover one routine eye exam per year at no cost to you.

The difference between optometrists and ophthalmologists

An optometrist has a Doctor of Optometry degree (O.D.) and can perform eye exams, write prescriptions for glasses and contacts, and diagnose common eye conditions like dry eye and presbyopia. Optometrists can prescribe eye drops and medications in most states. They cannot perform eye surgery.

An ophthalmologist is a medical doctor (M.D. or D.O.) who specializes in eye care. In addition to everything an optometrist does, ophthalmologists can perform surgery, treat complex eye diseases, and manage eye conditions related to systemic illness. If you have glaucoma, cataracts, or diabetic retinopathy, you may be referred to an ophthalmologist.

For a routine eye exam and prescription update, either provider works. If you need surgery or have a complex eye condition, your primary care doctor or optometrist will refer you to an ophthalmologist. Some people see an optometrist for routine care and an ophthalmologist only when needed.

What your eye doctor checks for beyond your prescription

During an eye exam, your doctor screens for conditions that have no symptoms in early stages. Glaucoma damages the optic nerve gradually and can lead to blindness if untreated, but most people do not notice vision loss until significant damage has occurred. Your doctor measures eye pressure and examines the optic nerve to catch it early.

The doctor also looks for signs of macular degeneration, which affects central vision in older adults, and diabetic retinopathy, which can develop in people with diabetes even if their blood sugar is controlled. These conditions are easier to treat when caught early. Your eye doctor may also notice signs of high blood pressure, high cholesterol, or other systemic conditions during the exam, which is why the appointment is valuable even if your vision feels fine.

If your doctor finds something concerning, they will explain what it is, whether it needs treatment, and whether you need to see a specialist. Do not hesitate to ask questions about any findings.

Frequently Asked Questions

Do I need an eye exam if I do not wear glasses?

Yes. Many serious eye conditions like glaucoma and macular degeneration have no symptoms in early stages, and an eye exam is the only way to detect them. Even if your vision is sharp, your eye doctor screens for disease and checks the health of structures inside your eye. Adults should have an exam at least every one to two years.

What if I cannot afford an eye exam?

Many community health centers and optometry schools offer low-cost or sliding-scale eye exams. Some states have programs that cover routine eye care for uninsured adults. Contact your local health department or search for "free eye exam near me" to find options in your area. Some retailers like Costco and Walmart offer affordable exams at their optical departments.

Can I get my eyes checked online or at home?

Online vision screening tools can estimate your prescription, but they cannot replace an in-person exam. A full eye exam includes tests for glaucoma, retinal health, and eye pressure that require specialized equipment. An in-person appointment is the only way to screen for serious eye disease.

What should I do if my vision changes between appointments?

Contact your eye doctor and describe the change — whether it is blurry vision, difficulty seeing at night, new floaters, or pain. If the change is sudden or accompanied by flashing lights or a shadow in your vision, call the same day. Do not wait for your next scheduled appointment if you have sudden symptoms.

How long does it take to get new glasses after my appointment?

If you order glasses from your eye doctor's office, they typically arrive within one to two weeks. Online retailers and big-box stores vary — some deliver in three to five business days, while others take two to three weeks. Ask about the timeline when you place your order.