Eye Examination
When to Schedule Your Eye Examination
Healthy children should receive vision screening at regular well-child visits. A comprehensive eye exam is recommended if screening is abnormal, symptoms are present, or risk factors exist. High-risk infants and children, such as those born preterm, with developmental delays, or with a family history of eye disease, should be examined earlier by a pediatric eye specialist. Adults without symptoms or known risk factors should have a baseline comprehensive eye exam at age 40, followed by periodic exams based on age and risks.
- Examples of pediatric risk factors: prematurity, family history of amblyopia, strabismus, congenital cataract or glaucoma, white pupil in photos, droopy eyelid, neurodevelopmental disorders.
- Adults 40 to 54: exam every 2 to 4 years if low risk.
- Adults 55 to 64: exam every 1 to 3 years if low risk.
- Age 65 and older: exam every 1 to 2 years, or more often based on findings.
- Earlier and more frequent exams for higher-risk groups, including African American or Hispanic ancestry, high myopia, steroid use, or family history of glaucoma or macular degeneration.
People with diabetes, a family history of eye disease, or other risk factors may need more frequent exams. Our eye doctor will create a personalized schedule based on your unique needs and health profile.
Certain symptoms require urgent evaluation and should never be ignored. Sudden vision loss, even if temporary, can signal a serious problem that needs prompt treatment.
- Sudden flashes of light or a shower of new floaters
- A curtain or shadow blocking part of your vision
- Severe eye pain or headache with vision changes
- Sudden blurry vision in one or both eyes
- Double vision that appears suddenly
- Chemical splash or suspected foreign body in the eye. Begin rinsing immediately with clean water or saline for at least 15 minutes and seek urgent care.
- Eye injury from high-velocity impact or any penetrating trauma. Do not apply pressure or try to remove an object.
- Painful red eye with light sensitivity, nausea, or vomiting.
- New halos around lights with eye pain or headache.
- Sudden vision changes with drooping face, weakness, or trouble speaking. Call emergency services.
Some warning signs are less urgent but still warrant scheduling an exam sooner than your routine visit. Difficulty reading small print, frequent headaches after visual tasks, or squinting to see clearly all suggest your eyes may need attention. Eye strain, particularly after computer work, and halos around lights at night are also reasons to call our office.
If you notice your eyes feel tired more quickly than usual or you have trouble adjusting to dim lighting, these changes merit evaluation. We can determine whether you need a new prescription or if another issue is affecting your comfort and vision.
Important: If halos occur with eye pain, a red eye, severe headache, or nausea, treat this as urgent and contact us immediately.
Beyond age-based guidelines, your personal health history shapes your exam schedule. If you have diabetes, high blood pressure, or an autoimmune condition, annual exams are typically recommended because these conditions can affect your eyes. People taking medications that may impact vision also benefit from more frequent monitoring.
- Diabetes Type 1: first dilated exam within 5 years of diagnosis, then annually.
- Diabetes Type 2: dilated exam at diagnosis, then annually.
- Pregnancy with diabetes: exam in the first trimester with follow-up as directed.
- Medications that can affect the eyes include steroids, hydroxychloroquine, amiodarone, ethambutol, isotretinoin, tamoxifen, and topiramate. You may need specific baseline and monitoring tests.
- High myopia, family history of glaucoma or macular degeneration, and African American or Hispanic ancestry may warrant more frequent exams.
Your occupation and lifestyle matter too. If you spend many hours daily on computers or perform detailed visual work, we may suggest more frequent check-ins to ensure your eyes remain healthy and comfortable.
If you wear glasses or contact lenses, annual eye exams help ensure your prescription remains current and your eyes stay healthy. Contact lens wearers particularly need regular monitoring because lenses sit directly on the eye surface and can affect eye health over time.
- Your prescription may change gradually without you noticing
- Contact lenses require a separate fitting evaluation and prescription
- We check for signs of contact lens complications like corneal changes
- Updated prescriptions can reduce eye strain and headaches
- Do not sleep in contact lenses unless specifically approved for overnight wear.
- Stop wearing contacts and call us if you have eye pain, redness, discharge, or light sensitivity.
- Avoid swimming or showering in contact lenses to reduce infection risk.
Preparing for Your Appointment
Arriving prepared helps us provide the most thorough and efficient care. Bring your current glasses and contact lenses, even if you think the prescription is outdated. Your insurance card and a form of identification are essential, along with any referral paperwork if your primary doctor sent you for a specific concern.
If you wear contact lenses, bring the boxes or know the brand and prescription details. A list of your current medications, including over-the-counter supplements, helps us understand your complete health picture.
- Sunglasses for after dilation.
- Prior eye records and your most recent prescriptions if available.
- Names and doses of any eye drops you use.
- A brief list of your work and hobby visual tasks, including computer time and night driving.
Many health conditions and medications can affect your eyes, so we need a complete picture of your medical history. Tell us about conditions like diabetes, high blood pressure, thyroid problems, and autoimmune diseases. Family history of eye conditions such as glaucoma, macular degeneration, or cataracts is also important because some eye diseases run in families.
- List all prescription medications you currently take
- Include vitamins, supplements, and herbal remedies
- Mention any drug allergies or adverse reactions
- Describe any recent changes in your general health
- Share information about previous eye surgeries or injuries
Examples of medicines with potential eye side effects:
- Steroids taken by mouth, inhaled, or as eye drops.
- Hydroxychloroquine.
- Amiodarone.
- Ethambutol.
- Isotretinoin.
- Tamoxifen.
- Topiramate.
If you wear contact lenses, we may ask you to remove them before your appointment or avoid wearing them for a certain period. Contacts can temporarily change the shape of your cornea, which may affect some measurements we need to take. For a routine exam, wearing your lenses to the appointment is usually fine, but call ahead if you have specific concerns.
If you are scheduling a contact lens fitting or having issues with your current lenses, plan to bring your lens case and solution. This allows us to examine the lenses themselves and evaluate your cleaning and care routine.
If corneal measurements or a contact lens fitting are planned, remove soft lenses for at least 24 hours beforehand. Rigid gas permeable lenses may need to be out for 1 to 2 weeks to allow the cornea to return to its natural shape. For scleral lens evaluation or refractive surgery consultations, longer times may be needed. Call our office for instructions.
Writing down your questions before your visit ensures you remember everything you want to discuss. Ask about any vision changes you have noticed, no matter how minor they seem. Inquire about protective eyewear if you play sports or work in environments with eye hazards.
If eye disease runs in your family, ask about your personal risk and what screening tests we recommend. Questions about lifestyle factors, like screen time or sun exposure, can lead to helpful advice for protecting your vision between visits.
What to Expect During Your Eye Examination
Your exam begins with a conversation about your vision and overall health. We will ask about any changes in your eyesight, including blurriness, difficulty with night driving, or problems with reading. This discussion helps us understand your concerns and focus the examination on areas that need special attention.
We also review your work environment, hobbies, and daily activities because these factors influence your vision needs. For example, office workers may need different lens features than people who primarily work outdoors.
The familiar eye chart test measures how clearly you see at various distances. You will read letters or symbols from a standardized chart, first with both eyes together and then with each eye separately. This simple test provides valuable baseline information about your current vision.
- We test distance vision using a chart across the room
- Near vision is checked with a smaller handheld card
- Each eye is tested individually and together
- Results are recorded as a fraction, like 20/20 or 20/40
During refraction, we determine your exact eyeglass prescription using a specialized instrument called a phoropter. You will look through the device while we show you a series of lens choices, asking which option makes letters clearer. This process helps us fine-tune your prescription for the sharpest possible vision.
We may also use an automated instrument that provides an objective measurement of your refractive error. Combining both methods ensures accuracy, particularly for patients who have difficulty communicating which lenses look clearer. For children or patients with significant focusing effort, we may use cycloplegic drops to relax accommodation for the most accurate measurement.
Measuring the pressure inside your eyes is an important screening test for glaucoma. The most common method uses a gentle puff of air directed at each eye, which may startle you but is not painful. Some offices use a different technique where a small probe gently touches the surface of your numbed eye.
Elevated eye pressure does not always mean you have glaucoma, but it is a key risk factor we monitor over time. Normal pressure also does not rule out glaucoma, which is why we perform additional tests to evaluate your optic nerve health. We may also measure your corneal thickness, since thicker or thinner corneas can change how pressure readings are interpreted, and perform applanation tonometry for precise measurements.
Dilation involves placing drops in your eyes that temporarily enlarge your pupils, allowing our eye doctor to see the inside structures of your eye more completely. The drops take about 20 to 30 minutes to work fully. During the dilated exam, we examine your retina, optic nerve, and blood vessels for signs of disease or damage.
- Dilation allows detection of retinal tears, diabetic changes, and macular problems
- Your vision will be blurry and light-sensitive for several hours afterward
- Bring sunglasses to wear after your appointment
- You may have difficulty focusing on close objects temporarily
- Very rarely, dilation can trigger a sudden rise in eye pressure in susceptible people. If you develop severe eye pain, headache, nausea, or vomiting after dilation, contact us or seek emergency care.
Depending on your symptoms and risk factors, we may recommend specialized tests during your examination. Optical coherence tomography, or OCT, creates detailed images of your retina layers and helps us detect conditions like macular degeneration early. Visual field testing maps your peripheral vision and is particularly important for monitoring glaucoma.
We may also perform color vision testing, especially for patients in certain professions, or evaluate how well your eyes work together as a team. These additional tests are typically quick and painless, and we will explain the purpose of each one before we begin.
Other possible tests include fundus photography, ultra-widefield imaging, corneal topography for keratoconus or contact lens planning, gonioscopy to assess the eye's drainage angle, pachymetry to measure corneal thickness, tear testing for dry eye, and biometry for cataract surgery planning.
Understanding Your Eye Examination Results
Your eyeglass prescription contains several numbers that describe exactly how lenses should be shaped to correct your vision. The sphere number indicates nearsightedness (with a minus sign) or farsightedness (with a plus sign). Cylinder and axis numbers correct astigmatism, which means your cornea has an irregular curve.
You may also see an add power for reading if you need bifocals or progressive lenses. The pupillary distance measurement ensures your lenses are centered correctly over your eyes. Our eye doctor will explain what each number means for your specific vision needs and how your prescription has changed since your last visit. Prism may be included if you have an eye alignment issue. Pupillary distance is often measured at the optical shop and may not appear on the prescription depending on local regulations.
During your exam, we often detect conditions before you notice any symptoms. Small cataracts may be present years before they affect your daily activities, and monitoring their progression helps us time treatment appropriately. Dry eye signs like reduced tear production or poor tear quality are common findings that we can address with various strategies.
- Age-related changes in the retina that need monitoring
- Early signs of glaucoma detected through pressure and nerve evaluation
- Dry eye indicators that explain discomfort or fluctuating vision
- Refractive changes requiring an updated prescription
- Vascular changes related to diabetes or high blood pressure
- Signs of keratoconus or irregular corneal shape that benefit from early management.
- Amblyopia risk factors or strabismus in children that require timely treatment.
- Inflammation inside the eye that may relate to systemic conditions.
Sometimes our initial examination reveals findings that require more specialized evaluation or testing. If we detect signs of retinal disease, significant glaucoma risk, or sudden unexplained vision loss, we may refer you to a retina specialist or glaucoma specialist for advanced care. These referrals ensure you receive expert attention for complex conditions.
We may also recommend additional imaging or testing before your next visit if we need to monitor a finding more closely. Medical conditions discovered during your eye exam, such as signs of diabetes or high blood pressure, may prompt us to recommend you see your primary care doctor for further evaluation.
After Your Eye Examination
If your prescription has changed or you are getting glasses or contacts for the first time, we will provide you with a written prescription. You can use this prescription at any optical shop or online retailer, though many patients choose to select their eyewear in our office for convenience and proper fitting. For contact lenses, your prescription includes additional specifications like lens diameter and curve that are specific to your eye shape.
We will discuss lens options that suit your lifestyle, such as anti-reflective coatings for computer work, photochromic lenses that darken in sunlight, or specialty designs for specific activities. Taking time to choose the right features ensures you get the most benefit and comfort from your new eyewear.
- For new contact lens wearers, we provide insertion and removal training.
- Follow the prescribed wearing time and replacement schedule.
- Use only recommended solutions. Never rinse lenses with tap water.
- Do not swim or shower while wearing contact lenses.
If we discover a condition requiring treatment, following our recommendations closely produces the best outcomes. For dry eye, this might include using artificial tears regularly, warm compresses and eyelid hygiene, environmental changes such as a humidifier, and prescription eye drops. Omega-3 fatty acids may help some patients; discuss whether they are right for you. Patients with early glaucoma may need to start pressure-lowering drops and return for more frequent monitoring.
- Use prescribed eye drops or medications exactly as directed
- Keep track of any side effects or concerns to report
- Make recommended lifestyle changes, like increasing breaks from screens
- Schedule any follow-up appointments or specialist visits promptly
Before you leave, we will tell you when you need to return for your next examination. For patients with stable vision and healthy eyes, this is typically in one to two years depending on your age. If we are monitoring a specific condition or you started a new treatment, we may want to see you again in weeks or months.
Mark your calendar or schedule your next appointment before leaving the office to ensure you maintain consistent care. Many eye conditions progress slowly, and regular monitoring allows us to intervene at the most effective time.
Between scheduled exams, pay attention to changes in your vision or eye comfort. Keep a simple journal if you notice patterns, like headaches at certain times of day or vision that seems worse in specific lighting. Contact our office if you experience new symptoms rather than waiting for your next routine visit.
Use the 20-20-20 rule for screen work: every 20 minutes, look at something 20 feet away for 20 seconds.
Practice good eye habits daily by taking regular breaks during computer work, wearing sunglasses outdoors, and keeping your hands clean before touching your eyes. These simple steps protect your vision and reduce your risk of infections and strain-related problems. If you have macular disease, we may give you an Amsler grid to check for new distortion at home.
Frequently Asked Questions
A comprehensive eye exam typically takes 45 minutes to an hour, though the time varies based on your individual needs and whether additional testing is necessary. If your eyes will be dilated, factor in the extra waiting time for the drops to take effect, and remember your vision will remain blurry for two to six hours afterward, which may affect the rest of your day.
Dilation is not always required at every visit, depending on your age, health history, and risk factors. Patients with diabetes, a family history of eye disease, or certain symptoms usually need dilation at each exam, while healthy younger adults may only require it every few years. We will explain whether dilation is necessary for your particular visit and why we recommend it.
If your eyes are not dilated, you can drive immediately after your exam. However, dilating drops make your vision blurry and increase light sensitivity for several hours, making driving unsafe for most people. Plan to have someone drive you home if dilation is part of your exam, or arrange alternative transportation like a rideshare service. Bring sunglasses and do not drive if you feel unsafe, even if your eyes were not dilated.
Many serious eye conditions develop without early symptoms, making regular exams essential even when your vision seems perfect. Glaucoma, for example, typically causes no pain or vision changes until significant permanent damage has occurred. Early detection through routine screening allows us to preserve your sight by starting treatment before you notice any problems.
Coverage varies widely depending on your insurance plan, so contact your insurance company before your appointment to understand your benefits. Many medical insurance plans cover eye exams when checking for or monitoring eye disease, while vision insurance typically covers routine refractive exams for glasses or contacts. Bring both your medical and vision insurance cards, as we may bill different types of exams to different plans. Contact lens fitting and follow-up are often separate services that may not be covered by medical insurance.
Always call our office immediately if you experience sudden vision changes, eye pain, or injury, rather than waiting for your scheduled appointment. We reserve time in our daily schedule for urgent situations and can usually see you the same day for true emergencies. For after-hours emergencies such as chemical splashes or significant trauma, begin rinsing immediately with clean water or saline for at least 15 minutes and go to the nearest emergency room. Inform them you will need eye specialist follow-up.
Getting Help with Your Next Eye Examination
Scheduling regular eye examinations is one of the most important investments you can make in your long-term health and quality of life. Our eye doctor is here to answer your questions, address your concerns, and provide personalized care based on your unique needs. Whether you are due for a routine check-up or experiencing new symptoms, we encourage you to contact our office to schedule your comprehensive eye examination.
This information is for general education and does not replace medical advice. If you have an eye emergency or sudden vision changes, seek immediate care.