Your First Contact Lens Exam: What to Expect
Before Your Appointment
A little preparation before your visit makes the whole process smoother. Knowing what to bring and what to share with your eye doctor helps us choose the right lens for your eyes, lifestyle, and vision needs from the very first fitting.
A contact lens exam takes longer than a basic eye checkup because it includes additional tests, a trial lens fitting, and hands-on training. Bring your current glasses and be ready to share how long you have worn them. It also helps to bring a list of any eye drops, allergy medications, or previous eye conditions you have had.
Some patients experience mildly blurred vision for a short time after the exam, depending on the drops used. Arranging a ride home for your first visit is a smart idea, just in case.
A contact lens prescription is legally separate from a glasses prescription. This is not just a technicality. A contact lens rests directly on the surface of the eye, not a few centimeters in front of it like eyeglass lenses do. That difference changes the power needed and means the prescription must also specify the lens brand, material, base curve, diameter, and an expiration date. A glasses prescription number alone cannot determine whether a lens fits your eye shape or works with your tear film.
Your appointment starts with a short conversation about why you want contact lenses and how you plan to use them. Your eye doctor will ask about your daily routine, screen time, sports, travel habits, allergies, and any past eye surgeries. These details shape which lens type makes the most sense for you. Your goals matter more than most patients realize when it comes to selecting the right lens.
What Happens During the Exam
The contact lens exam includes several steps that go beyond what happens at a standard glasses prescription visit. Each test gives your eye doctor the information needed to match a lens to your eyes precisely and safely.
The exam begins with a full refraction, which is the process of determining how much correction your eyes need. This test establishes the sphere, cylinder, and axis values that form the basis of your prescription. Your eye doctor may then adjust that number slightly to account for the difference in where a contact lens sits compared to an eyeglass lens. You will notice letters getting sharper with each change of the trial lens during this step.
Several additional measurements are taken that are specific to contact lens fitting and are not part of a standard glasses exam. These tests ensure the lens you wear fits your eye accurately and comfortably.
- Keratometry to measure the curvature of your cornea
- Horizontal visible iris diameter to determine the right lens size
- Pupil size in both light and dark conditions, which matters for multifocal lenses
- Tear film evaluation to check the quality of the moisture layer on your eye
- Lid and eyelid surface health assessment
A slit-lamp is a microscope that lets your eye doctor examine the cornea, the white of the eye, and the eyelids in detail. This step is required before any trial lens is placed on your eye. It helps identify conditions that could make lens wear uncomfortable or unsafe, including dry eye disease, blepharitis (inflammation of the eyelid margins), and allergic conjunctivitis. When any of these are present, a short course of treatment first often makes lens wear go much more smoothly afterward.
Once your measurements are complete, your eye doctor selects a starting lens based on your test results. The lens is placed on your eye, and you rest for about 15 minutes to let it settle into position. Your doctor then evaluates how the lens centers on the eye, how it moves with each blink, and whether your vision is clear and stable. This step is where the fitting truly begins.
Toric lenses are designed to correct astigmatism, a condition where the cornea is shaped more like a football than a sphere. Because toric lenses must hold a specific angle on the eye to work correctly, your eye doctor checks whether the lens is rotating off its intended position. If it is, the axis in the prescription is adjusted. This step is what makes the difference between a prescription that almost corrects your astigmatism and one that fully corrects it.
After the Exam and Follow-Up Care
Leaving with a pair of trial lenses is only part of the process. Before you go, you will receive hands-on training and clear guidance on caring for your lenses safely. A follow-up visit is also scheduled to confirm the fit and finalize your prescription.
First-time wearers always receive hands-on training before leaving the office. A trained staff member works with you step by step at a mirror, walking through how to insert and remove the lens correctly. You will practice both steps more than once and learn how to check that the lens is right side out. This portion of the visit typically adds 20 to 30 minutes, and it is time well spent.
Proper care habits prevent most contact lens-related infections. Your care team will walk through each of these guidelines before you leave.
- Do not sleep in lenses unless your eye doctor has specifically told you that your lens type allows it.
- Never rinse or store lenses in water of any kind, including tap water.
- Do not top off old solution in your case. Always use fresh solution each time.
- Replace your lens case at least every three months.
A follow-up appointment is scheduled within one to two weeks of your initial fitting. At that visit, your eye doctor evaluates comfort, corneal health, and how the lenses are performing in real daily life. Your prescription is not finalized until after this check. Your full supply of lenses is provided at that point, not before. This step protects your eyes and ensures that what you order is exactly right.
Some symptoms should not wait until your follow-up. Pain, increasing redness, sudden blurry vision, discharge, or sensitivity to light are all warning signs that something may be wrong. Remove the lens immediately if any of these occur and contact your eye doctor the same day. A small problem caught early is straightforward to treat. The same issue left for a few days can lead to corneal scarring and lasting vision problems.
Specialty Contact Lens Fitting
Not everyone is a straightforward candidate for standard soft lenses. Some eye conditions and prescription complexities require specialty lens options and a higher level of fitting expertise. Our optometry team includes specialists with extensive experience in these areas.
Patients with irregular corneas, keratoconus (a condition where the cornea gradually thins and bulges forward), post-surgical ectasia, severe dry eye, high prescriptions, or pediatric aphakia (absence of the eye's natural lens in children) often cannot achieve comfortable or clear vision with standard soft lenses. Specialty lenses are designed specifically for these situations.
Our team fits a full range of specialty lens options, matched to each patient's specific condition and visual goals.
- Scleral lenses, which vault over the cornea and rest on the white of the eye, providing both correction and relief for dry or irregular eyes
- Rigid gas-permeable lenses, which hold their shape on the eye and offer sharp, stable vision for complex prescriptions
- Toric lenses for astigmatism correction
- Multifocal lenses for patients who need correction at more than one distance
- Orthokeratology lenses, worn overnight to gently reshape the cornea and reduce the need for daytime correction
- Myopia-control lenses designed to slow the progression of nearsightedness in children and young adults
Dr. Paul Zerbinopoulos has been fitting scleral lenses since 2008 and has served as past president of the Rhode Island Optometric Association. Dr. Earle Scharff brings over 40 years of experience fitting rigid gas-permeable, multifocal, toric, and scleral lenses. Dr. Lori Boivin specializes in advanced contact lens fittings, with training from Massachusetts Eye and Ear. Together, they manage some of the most complex contact lens cases our patients present with.
Frequently Asked Questions
Here are answers to questions patients often have about the contact lens fitting process that go beyond what is covered above.
The trial lens from your first visit is a starting point, not a finalized prescription. Your follow-up appointment is when your eye doctor confirms the fit and vision are both performing well in daily life. Until that visit is completed, the prescription is not released. Follow the wear schedule your office provides and return on the planned date so the process can be completed properly.
Contact lens prescriptions are brand-specific, meaning the base curve, material, and design vary between manufacturers. An online retailer is required by law to match the exact brand written on your prescription. Swapping brands without your eye doctor's approval can result in a lens that fits poorly, causes discomfort, and over time may damage the surface of the eye. If you are interested in switching brands, bring it up at your follow-up visit.
Any meaningful change in your eye prescription warrants a fresh contact lens evaluation, even if the shift seems small. A change in sphere, cylinder, or axis can affect both vision clarity and lens fit. In many cases, a quick recheck resolves the update in a single visit. Skipping this step and simply adjusting numbers without a fitting check can lead to lenses that underperform or stress the cornea over time.
This is one of the most common concerns first-time wearers bring to their appointment, and it is completely normal. Our staff trainer starts with saline drops to help you get used to touching near your eye before any lens is placed. Most patients successfully complete insertion and removal training in one session. Occasionally a patient needs a second short practice visit, which is a normal and expected part of the process for some people.
A mild awareness of the lens for the first few minutes after insertion is normal, and it fades as the lens settles. What is not normal includes sharp pain, stinging that grows worse over time, sudden blurry vision, increased redness, or any discharge. Remove the lens immediately if any of these occur. Do not wait to see if it improves on its own. Contact your eye doctor the same day so the cause can be identified and addressed quickly.
Most contact lens wearers benefit from an annual follow-up to ensure the fit is still accurate as the eyes naturally change over time. Patients in myopia management programs, children, or anyone with dry eye or a history of corneal conditions may need more frequent visits. These check-ins are not just routine. They catch small shifts in corneal curvature or tear quality early, before they develop into bigger problems that require more involved treatment.
Schedule Your Contact Lens Exam at Rhode Island Eye Institute
Whether you are trying contact lenses for the first time or need a specialty fitting for a more complex prescription, our team is here to guide you through every step with care and expertise. Rhode Island Eye Institute brings together experienced eye doctors and specialty-trained optometrists to offer contact lens care that is thorough, personalized, and backed by years of hands-on experience. We invite you to schedule your exam and experience the difference that truly attentive eye care makes.