A Great Eye Exam Is Half Expertise, Half How Clearly You Communicate

An eye exam isn’t something you just sit through passively while being “examined.” No matter how carefully an optometrist measures, they can’t read the information in your head that you never said out loud — what distance you actually look at most of the day, which situation bothers you the most, or exactly what was wrong with your last pair of glasses. Only you know that. The more clearly you describe it, the more your exam shifts from “guessing an average value” to “tailored to your actual life.”

So this article spells out how to be a well-prepared patient. Spend five minutes preparing, and the quality of your exam changes a lot.

Pre-Exam Checklist

CategoryWhat to Prepare
BringYour current glasses (including a spare, or one you find uncomfortable), and the box or prescription card for your contact lenses
Think throughYour main viewing distances and hours each day, which situation you most want fixed, what was uncomfortable about your last pair
MentionYour occupation and how you use your eyes, whether you drive (especially at night), your screen distance, any dizziness or eye strain
Contact lens wearersHow you’ve been wearing them on exam day — ideally take them out early enough to let your corneas rest
Important to flagChronic conditions, recent eye treatment, and any eye drops you’re currently using

What to Bring: Your Old Glasses Are Your “Medical History”

Bring your current glasses, especially the pair you find uncomfortable. Once your optometrist puts it on a lensmeter, they immediately know your current prescription, how far it’s drifted from your actual eyes, and whether your last pair was under- or over-corrected. It’s like reading your visual history directly — much faster and more accurate than starting from zero. Even the pair you’re ready to throw out is worth bringing, because “what’s wrong with it” is itself a clue.

Contact lens wearers, bring your prescription box too. Contact lens and glasses prescriptions can’t be directly copied over from one to the other (because the vertex distance is different — sitting on the cornea versus resting in front of the bridge of your nose calls for different power), but your current contact lens prescription is still a useful starting reference.

Think It Through and Say It Clearly: Your “Visual Scenario”

This is the part most people overlook, yet it has the biggest impact on which direction the fitting should go. With the exact same prescription, the best lens design for someone who stares at a screen all day is completely different from someone who’s often out driving. So be specific:

  • Screen distance and hours: How many hours a day do you look at screens? Roughly how far is the screen from your eyes? (An arm’s length? Closer?)
  • Driving needs: Do you drive often, and do you drive at night? Do oncoming headlights feel glaring or produce halos at night?
  • Reading and near work: Reading, phone use, handiwork — how much of your day involves close-up activities?
  • The one thing you most want fixed: If this pair of glasses could only improve one situation, which one would you pick?

The more specific, the better. “My eyes get especially tired in the afternoon when I’m on the computer, and text looks a bit blurry” is a hundred times more useful than “my eyes feel a bit off.” The first step of a full eye exam is exactly this — asking questions before measuring, so the prescription actually fits your life. For a full walkthrough of what happens during an eye exam, see the explanation in Do You Need to See an Ophthalmologist Before Getting Glasses?

How to Describe “Discomfort”: Turning a Feeling Into a Clue

The word “uncomfortable” is hard for an optometrist to act on directly. Try breaking it down using these angles instead:

  • When: Fine in the morning, starts in the afternoon? Only when looking near, or also at a distance?
  • What kind of feeling: Blurry, dizzy, tight, sore, seeing double, or like something’s pulling?
  • In which situation: Looking at a screen, reading, driving, or walking down stairs?
  • Does covering one eye feel better: This is an important clue for judging binocular coordination.

That last point is especially useful. If you notice that “covering one eye actually feels more comfortable than using both,” that often points to a binocular coordination issue rather than just a single-eye prescription problem. A full eye exam specifically assesses binocular vision function to catch exactly this kind of case. We break down how the two eyes work together, and why they need to be assessed together, in this article: What Is “Binocular Vision”? How Your Two Eyes Work Together

A Few Things Worth Flagging Proactively

  • Contact lens wearers: We recommend taking soft contact lenses out early enough before your exam to let your corneas rest — rigid lenses need even more time. Please also mention how you’ve been wearing them that day, so the measurement is accurate. One more note: general contact lens fitting is governed by Taiwan’s Optometrists Act — it must be carried out under an ophthalmologist’s guidance for those under 15, and it’s not permitted for children under 6.
  • Chronic conditions and medication: Please mention chronic conditions like diabetes, any eye drops you’re currently using, and any recent eye treatment or surgery. These affect our judgment and how we triage you.
  • Say it right away if it’s a red flag: If you’ve recently had a sudden drop in vision, seen shadows or flashes, or have red, swollen, or painful eyes, that’s not something glasses can address — please see an ophthalmologist as soon as possible rather than waiting for an eye exam.
  • Bringing a child in: Under Taiwan’s Optometrists Act, refraction for schoolchildren under 15 must be carried out under an ophthalmologist’s guidance; children under 6 should see an ophthalmologist first for a medical evaluation. Before bringing your child in, think through how they see at distance and near day to day, where they sit at school, and how much time they spend on screens — all of this is useful information.

Do this preparation, and you’ll find the eye exam turns into a conversation, not a passive checkup. And a good optometrist will pick up on every clue you give and ask the right next question. A Good Optometrist Matters More Than a Good Lens is exactly about this.

FAQ

Q1: Do I really need to bring my old glasses to an eye exam? What happens if I don’t?

We strongly recommend bringing them, especially the pair you find uncomfortable. Old glasses are your visual history — one measurement tells us your current prescription, how much it’s changed, and what was off about your last pair. Not bringing them doesn’t mean you can’t get an exam, but your optometrist loses an important reference and needs more time to work things out from scratch. Bring your prescription box and contact lens packaging along too.

Q2: Do I need to rest my eyes before an eye exam?

It helps. Avoiding long stretches of close-up work and getting enough sleep before your exam reduces the chance of your ciliary muscle being overly tensed, which can make your prescription measure stronger than it actually is. Contact lens wearers should take them out early enough to let their corneas recover (soft lenses need some time, rigid lenses longer), and please mention your wearing schedule that day.

Q3: I don’t know how to describe my discomfort — what should I do?

Just break it down using “when, what kind of feeling, and in which situation.” For example: “In the afternoon, on the computer, text gets blurry and there’s some tightness.” Add one more line — “does covering one eye feel more comfortable” — and that’s already a valuable clue. You don’t need to know the technical terms; just describe your everyday experience specifically, and let your optometrist translate the rest.

Q4: What should I prepare before bringing my child in for an eye exam?

Think through how your child sees at distance and near day to day, how far they sit from the blackboard at school, how much time they spend on screens each day, and whether they squint or lean in close to see things. These everyday observations are very helpful for the assessment. Also, please keep in mind: under Taiwan’s Optometrists Act, refraction for schoolchildren under 15 must be carried out under an ophthalmologist’s guidance, and children under 6 should see an ophthalmologist first for a medical evaluation — we coordinate tracking within that framework.


Once you’re ready, bring your old glasses and this information in and let’s talk. The more clearly you describe things, the more precisely we can fit you. Xinzhuang: +886-2-2206-6700, Banqiao: +886-2-2253-1246. Beyond Visual Optometry’s optometrists will follow every clue all the way through with you.