Getting your eyes checked starts with choosing the right type of eye doctor and scheduling a comprehensive exam. For most healthy adults under 40 with no vision complaints, a routine exam every two to four years is sufficient. The process itself is straightforward, typically takes 30 to 60 minutes, and costs around $136 without insurance.
Optometrist or Ophthalmologist: Which One You Need
Two types of doctors perform eye exams, and for most people, either one works fine for a routine visit. An optometrist completes a four-year optometry program after college and specializes in eye exams, prescribing glasses and contacts, and detecting common eye conditions. An ophthalmologist goes through medical school plus a four-year residency and can do everything an optometrist does, plus perform eye surgery and manage complex diseases like glaucoma or retinal conditions.
If you just need a prescription update or a standard wellness check, an optometrist is a great choice. If you have a known eye disease, a family history of serious conditions, or need surgical evaluation, an ophthalmologist is the better starting point. Your optometrist can also refer you to an ophthalmologist if they find something that needs specialized care.
Retail Chain vs. Private Practice
You can get an eye exam at a retail vision center (inside a big-box store or optical chain) or at an independent private practice. The differences come down to depth of care and convenience. Retail chains are designed for efficiency: they’re good for quick prescription updates, often have evening and weekend hours, and let you pick out glasses on the spot. The trade-off is that these exams tend to focus on your prescription rather than a thorough medical evaluation, and you may see a different doctor each visit.
Private practices and medical optometry offices typically invest in more advanced diagnostic equipment and prioritize long-term relationships with patients. That continuity means your doctor can track subtle changes over time. If you have dry eyes, allergies, diabetes, or a family history of eye disease, a medical practice is better equipped to monitor and manage those conditions. For a healthy person who just needs new glasses, either setting works.
What Happens During an Eye Exam
A comprehensive eye exam covers far more than reading letters on a chart. Your doctor will start by reviewing your health history, including any medications you take, eye problems you’ve noticed, and whether conditions like glaucoma, macular degeneration, or diabetes run in your family.
The exam itself typically includes several tests:
- Visual acuity: You read progressively smaller letters on a wall chart (or a screen) to measure how sharp your vision is at distance and up close.
- Refraction: The doctor uses a series of lenses (“which is better, one or two?”) to determine your exact prescription.
- Eye pressure test: A quick, painless measurement called tonometry checks the pressure inside your eyes. High pressure is an early warning sign for glaucoma.
- Slit-lamp exam: The doctor uses a specialized microscope with a bright, thin beam of light to examine the front structures of your eye, including the cornea, iris, and lens.
- Pupil and eye movement check: Your doctor evaluates how your pupils respond to light and how well your eyes move together and track objects.
If your doctor wants to see the retina and optic nerve at the back of your eye, they’ll dilate your pupils using eye drops. Dilation takes about 15 to 30 minutes to kick in, and the effect lasts anywhere from four to 24 hours. While dilated, your vision will be blurry up close and your eyes will be sensitive to light. Bring sunglasses, and know that reading your phone or driving may be uncomfortable for a few hours afterward. People with lighter eye colors tend to stay dilated longer.
How Often to Get an Exam
The American Academy of Ophthalmology recommends a baseline comprehensive exam at age 40 for adults with no symptoms or risk factors. From there, the schedule tightens as you age:
- Ages 40 to 54: Every 2 to 4 years
- Ages 55 to 64: Every 1 to 3 years
- Age 65 and older: Every 1 to 2 years
If you’re at higher risk for eye disease (for example, African Americans have elevated glaucoma risk), those intervals should be more frequent, and comprehensive exams should begin before age 40. Anyone with diabetes, a strong family history of eye disease, or a previous eye injury should also be checked more often, regardless of age.
Children follow a different timeline. Babies should have their first thorough eye exam between 6 and 12 months of age. After that, school-age children need vision and eye alignment screenings every one to two years, either at a pediatrician’s office, through school screenings, or with an eye doctor. New problems can develop at any point during childhood, so regular checks matter even if your child has never complained about their vision.
What It Costs
Without vision insurance, a routine eye exam in the United States averages about $136, with a typical range of $105 to $257 depending on where you live and what tests are performed. With a vision insurance plan, the average out-of-pocket cost drops to around $25.
Medicare does not cover routine eye exams for glasses or contact lens prescriptions. It does, however, cover eye exams related to specific medical conditions, such as diabetes monitoring and glaucoma screenings for people at high risk. If you have a separate vision insurance plan through your employer or marketplace, routine exams are generally covered annually or biannually.
Some optometry programs offer free or reduced-cost infant eye assessments for babies between 6 and 12 months as a public service, so it’s worth asking when you schedule.
How to Prepare for Your Appointment
A little preparation makes the visit smoother and helps your doctor give you better care. Bring your current glasses or contacts, even if the prescription is old. Write down any vision changes you’ve noticed: blurriness, difficulty driving at night, eye strain from screens, headaches. Bring a list of all medications you take, including over-the-counter supplements, since some can affect your eyes. And think about your family’s eye health history. Knowing whether a parent or sibling has had glaucoma, macular degeneration, or cataracts gives your doctor important context.
If you know you’ll be dilated, plan your ride home or give yourself extra time before you need to do close-up work. Some offices offer retinal imaging as an alternative to dilation, though it may cost extra and doesn’t always replace dilation entirely.
Symptoms That Need Urgent Attention
Most eye problems develop slowly, which is exactly why routine exams catch things early. But certain symptoms call for immediate care, not a scheduled appointment weeks out. Get to an eye doctor or emergency room right away if you experience a sudden loss of vision (partial or complete), a sharp increase in floaters or flashes of light, a curtain or veil blocking part of your visual field, severe pain in or around your eye, sudden double vision, or any chemical splash to the eye. These can signal retinal detachment, acute glaucoma, or other conditions where hours matter for preserving your sight.