Most healthy adults should get a comprehensive eye exam at least every two years, but several life stages, symptoms, and health conditions call for more frequent visits. Your age, whether you wear corrective lenses, and your overall health all shift the timeline. Here’s how to know when it’s time to book an appointment.
Routine Exam Schedules by Age
Children need eye screenings earlier than most parents realize. A newborn’s eyes should be checked shortly after birth for basic indicators of eye health. A second screening happens between 6 and 12 months, typically at a well-child visit. Between ages 1 and 3, your child is checked for healthy eye development, and between 3 and 5, both vision sharpness and eye alignment should be tested. At age 5, another screening for visual acuity and alignment is recommended before or during the early school years.
For adults between 18 and 39 with no vision problems or risk factors, a comprehensive exam every two to three years is generally sufficient. Once you hit 40, every one to two years is a better target, because this is when age-related changes start picking up speed. After 65, annual exams become important. Conditions like cataracts, glaucoma, and macular degeneration grow significantly more common, and many develop silently before you notice any symptoms.
Vision Changes That Deserve an Appointment
If you’re in your early to mid-40s and you’ve started holding your phone or a menu farther from your face to read it, that’s presbyopia. It affects more than 80% of people by age 40 and is nearly universal by 60. The lens inside your eye gradually stiffens, making it harder to focus on close objects. You might first notice it in dim lighting or after long stretches of reading. This isn’t an emergency, but it’s a clear signal to get an updated prescription.
Blurry vision that comes and goes after long hours on a computer or phone is a different issue. Digital eye strain causes temporary symptoms: dry, itchy eyes, headaches, burning sensations, difficulty shifting focus between near and far objects, and sensitivity to bright light. These typically improve with rest. However, extended screen time, especially in children and young adults, has been linked to actual increases in nearsightedness. During the COVID-19 pandemic, annual myopia progression roughly quadrupled compared to pre-pandemic levels due to excessive near work. If your distance vision is getting noticeably worse, not just temporarily blurry after screen use, that warrants an exam to check for a real change in your prescription.
If You Have Diabetes
Diabetes changes the timeline significantly. If you have type 2 diabetes, you should get a comprehensive dilated eye exam at the time of diagnosis, then at least once a year after that. Type 2 can go undiagnosed for years, meaning damage to the blood vessels in your retina may already be underway by the time you find out.
For type 1 diabetes, the recommendation is an eye exam within five years of diagnosis, then yearly. Women with either type who are planning a pregnancy should have a comprehensive exam before conception and again early in the first trimester, since pregnancy can accelerate diabetic eye disease.
Signs of Serious Eye Conditions
Some eye problems develop so gradually that you won’t notice them without a professional exam. That’s especially true of glaucoma, which can silently damage peripheral vision for years. Cataracts tend to announce themselves more obviously through cloudy or dimmed vision, increased glare sensitivity, and fading colors, but they still progress slowly enough that people often adapt without realizing how much vision they’ve lost.
Age-related macular degeneration attacks your central vision. Early signs include missing words in the middle of a line while reading, or noticing that the center of your visual field looks gray or obscured while driving. In its more advanced wet form, straight lines may appear bent or wavy. Any of these changes, even if mild, call for a prompt appointment.
Symptoms That Need Same-Day or Emergency Care
Certain symptoms signal a potential emergency. Get care immediately if you experience:
- Sudden vision loss in one or both eyes
- A sudden burst of new floaters or light flashes, which can indicate a retinal tear or detachment
- Severe eye pain with nausea, vomiting, and redness, the hallmark of acute angle-closure glaucoma
- Rainbow-colored halos around lights alongside pain or headache
- A chemical splash in the eye
- A foreign object embedded in the eye
- Sudden double vision
- New swelling or pain after eye surgery
Acute angle-closure glaucoma deserves special attention because it can cause permanent vision loss within hours. It strikes suddenly with severe eye pain, a visibly red eye, blurred vision, halos, headache, and nausea or vomiting. If that combination hits you, go to an emergency room.
Contact Lens Wearers Need Annual Visits
If you wear contacts, you’re on a stricter schedule than glasses wearers. Federal law sets a minimum prescription expiration of one year, meaning you’ll need at least an annual exam to renew it. Some states require exams even more frequently. This isn’t just a legal formality. Contact lenses sit directly on your cornea, and an outdated prescription or poorly fitting lens increases the risk of infections, corneal ulcers, and oxygen deprivation to the eye’s surface. Your annual visit checks not just your prescription but the health of the tissue under the lens.
Optometrist or Ophthalmologist
For routine exams, prescription updates, and common conditions like dry eye or pink eye, an optometrist handles everything most people need. They can also diagnose and manage early-stage glaucoma and monitor diabetic eye changes. But if you need surgery of any kind, you’ll see an ophthalmologist. That includes cataract removal, LASIK, corneal transplants, and treatment for retinal problems. An ophthalmologist is also the right choice for complex or hard-to-control conditions like severe glaucoma or advanced diabetic retinopathy. If your optometrist identifies something beyond their scope, they’ll refer you.
In practical terms, starting with an optometrist for your routine care is perfectly appropriate. Many people never need an ophthalmologist. But if you’re over 65 and managing multiple eye conditions, or if you’ve been told you may need a procedure, establishing care with an ophthalmologist early gives you a baseline and a relationship before anything becomes urgent.