What Happens in an Eye Exam
What happens in a Beyond 2020 eye exam.
A comprehensive eye exam is more than reading letters. Here is every step, in order, with the equipment we use at our Odessa and East Lake offices, so you know what to expect before you walk in.
Most exams take 45 to 60 minutes, longer if your eyes are dilated or you’re being fitted for contact lenses.
Before your visit
- Bring your current glasses, contact lenses (or the box), a list of medications, and your insurance card
- If you’re new, you’ll fill out a history form: eye problems, general health and family history (glaucoma, macular degeneration, diabetes)
- Wear contacts in unless you’ve been told otherwise; we’ll check them on your eyes
- Bring sunglasses if you might be dilated
More in planning your visit and insurance.
Step by step
- History and symptoms. What you’ve noticed, how you use your eyes (screens, driving, sports, reading), medications and family history. This shapes everything that follows.
- Pre-testing. Our Marco OPD-3 maps the shape of your cornea (topography) and measures how your eye focuses light (wavefront). It gives a starting point for your prescription and flags astigmatism or irregular corneas.
- Eye pressure. An iCare tonometer measures pressure with a light, quick touch: no air puff and usually no numbing drops. High pressure is a key risk factor for glaucoma.
- Visual acuity. How clearly each eye sees at distance and near, on digital acuity charts.
- Refraction. “Which is better, one or two?” on an automated Marco phoropter. Automated phoropters switch lenses quickly and precisely, so comparisons are easier and the final prescription is more exact.
- Eye teaming, focusing and pupils. Cover tests, eye movements, near point and pupil reactions. These matter for headaches, reading comfort and neurological health.
- Visual fields, a check of your side vision, when indicated.
- Slit lamp exam. A magnified look at the eyelids, tear film, cornea, iris and lens on LED Marco slit lamps. With SLEYECAM, we can photograph or record what the doctor sees and show it to you on screen, then compare at future visits.
- Retina and optic nerve. With dilation, Optomap, or both (below).
- Results in plain language. The doctor explains your prescription, eye health and any next steps, and answers questions.
Dilation and Optomap imaging
Extra testing when you need it
- Dry eye evaluation: at East Lake, meibography images your oil glands, along with tear meniscus height and tear breakup time. See dry eye treatment.
- Contact lens fitting: measurements, trial lenses and a follow-up. See contact lenses.
- Specialty lens fitting for keratoconus: detailed corneal topography. See keratoconus and scleral lenses.
- Medical visits for red eyes, infections and injuries, often the same day. See medical eye care.
- Driver license vision forms. See driver license vision test.
After the exam
If you need glasses, our opticians help you choose frames and lenses right there. At Odessa, most single-vision glasses are made the same day in our lab. See same-day glasses. Your prescription is yours, and we’re glad to give you a copy.
For kids
Children’s exams use pictures, lights and games, so no letters are needed, and we see kids from age 1. Dilating drops are common for children because their focusing is so strong. See pediatric eye care.
Common questions
How long does an eye exam take?
Most comprehensive eye exams take 45 to 60 minutes. Plan for a bit longer if your eyes are dilated or you’re being fitted for contact lenses.
Do you use the air puff test?
No. At our Odessa and East Lake offices we check eye pressure with an iCare tonometer, which uses a quick, light touch with no air puff and usually no numbing drops.
Will my eyes be dilated?
Not always. Optomap ultra-widefield imaging often lets the doctor see the retina without drops, but dilation is still recommended for new flashes or floaters, diabetic eye exams and some other conditions.
What should I bring to my eye exam?
Bring your current glasses, your contact lenses or the box, a list of medications, your insurance card and sunglasses in case you’re dilated.
Can I get my glasses the same day?
Often, yes. At our Odessa office, most single-vision glasses are made the same day in our in-house lab.
Medically reviewed by Dr. Christopher Tumolo, O.D., L.D.O. · Last reviewed
Sources
- American Academy of Ophthalmology: What Does an Eye Exam Include?
- American Optometric Association: Comprehensive eye exams
- National Eye Institute: Glaucoma
This page is general education, not a diagnosis. Same-day appointments are available during office hours.
