Step 1: Check in—early, if you can
If your eye doctor’s office doesn’t have online paperwork that you can fill out before hand, be sure to get there a little early. Paperwork typically includes a medical and family history because many common diseases like diabetes and arthritis can have profound effects on eye health and vision, and some diseases are hereditary.
Step 2: The pre-test
When they call you back (this will likely be a technician, not the eye doctor yet), the first thing they’ll usually do is takes some initial measurements. This is called a pre-test and it can include:
- Collecting your vitals like height, weight and blood pressure
- A basic visual test to determine your how well you can see shapes and details. Think: The eye chart you see on walls at the doctor’s office.
- Taking a picture of your retina
- Measuring your prescription and the curvature of the front of the eye with what’s called an auto-refractor
- A test for color blindness (typically only done at your first comprehensive exam)
- A measurement of your internal eye pressure, which can screen for early signs of glaucoma
Step 3: The comprehensive exam
Did you know that a comprehensive eye exam is good for more than just your eyes? The tests your eye doctor performs can help detect over 270 systemic diseases. In this part of the appointment, your eye doctor will test your vision, assess how your eyes work together, and evaluate the health of your eyes and retina. Let’s go over some of the elements.
Determining your prescription
During this part of the exam, your eye doctor will find out how much correction each eye needs. To do that, they’ll most commonly use a phoropter. You’ll be asked: “Which is better? Number one or number two,” because they’re cycling through different lens powers and seeing which ones provides the sharpest vision. Your eye doctor may also opt to use other tools like a retinoscope. A retinoscope shines a light into your eye, and depending how the light reflects off the retina, the doctor can determine your prescription.
Are your eyes working as a team?
Another part of the exam will test for abnormalities in the way your eyes function and/or move together. This is called binocular vision, because your brain has to take information from both your eyes to create one image. Because of that, it’s not just a test of your eye’s muscular function but also your neurological function. Your eye doctor may test this by moving an object around in different directions and asking you to follow with your eyes.
Inspecting the outside of your eyes
In this part of the exam, your eye doctor will take a look at the external parts of your eyes like your eyelashes, your cornea (the front surface of your eyes) and your iris (the colored part of your eye) with a special microscope called a slit lamp.
Will they dilate your pupils?
Your doctor may want to dilate your pupils, especially if this is your first visit with them. This procedure allows them to better see through to the back of the eye and evaluate the health of your retina and optic nerve inside the eye. This is especially important if you are nearsighted as nearsighted people have a higher risk of developing retinal problems.
Step 4: The contact lens exam
The consultation
There are different contacts for different needs (daily disposables vs. reusables, lenses for astigmatism and for presbyopia, etc.) which your eye doctor will take into consideration depending on your lifestyle and prescription needs, so they’ll ask questions about how you want to use your contacts.
Additional testing
Glasses and contact lenses are different for more than just the obvious reasons. The prescription will be a little different because the contact lens actually has to sit on your eye, and the curvature of your eye is unique to you. So in addition to the testing from the comprehensive eye exam, your eye doctor may:
- Take a few more measurements to know which lens to fit you with. This will include the curve of your cornea, and possibly the width of your cornea.
- Test your tear film to see if you are predisposed to dry eye.
Step 5: Trying on contacts
Your doctor will have some recommendations and you’ll try them on to see how they feel, fit, and improve your vision. Your doctor will verify that the lenses fit well on your eye, that they move when you blink, and that they cover your cornea completely.
Step-by-step guide to putting on contacts