Many adults go years between eye exams. Some go decades. The most common reason isn’t carelessness — it’s that vision feels fine, so why bother? But the eye conditions that cause the most preventable vision loss in adults — glaucoma, age-related macular degeneration, diabetic eye disease — are largely silent until they aren’t. By the time vision changes are noticeable, real damage has often already occurred.
This is the case for regular ophthalmologist visits. Not when something feels wrong. Before something feels wrong.
What an ophthalmologist looks for
A comprehensive eye exam involves more than reading the chart. The dilated examination of the retina, the intraocular pressure measurement, the slit-lamp evaluation of the front of the eye, the optic nerve assessment — these are the components of an ophthalmologic exam that screen for conditions you can’t feel.
The optic nerve quietly thins in glaucoma long before peripheral vision feels different. Drusen accumulate in early macular degeneration with no symptoms. Diabetic retinopathy progresses through stages that produce no symptoms in the early phases. A trained ophthalmologist’s exam, supplemented by Optical Coherence Tomography (OCT) imaging when warranted, identifies these conditions early — when treatment is most effective.
How often is “regular”?
The American Academy of Ophthalmology recommends a baseline comprehensive eye exam at age 40 for adults without specific risk factors, and follow-up exams every 2-4 years through age 54, every 1-3 years from 55-64, and every 1-2 years after 65.
Earlier and more frequent exams are appropriate for adults with diabetes, hypertension, family history of glaucoma or macular degeneration, history of eye injury, high myopia, or any current eye complaint. Patients of African American or Hispanic heritage have higher rates of glaucoma and benefit from earlier screening.
What patients are surprised to learn
The cataracts that someone “didn’t know they had” almost always show up on dilated exam years before the patient notices the gradual softening of vision they cause. Glaucoma diagnosed in its early stages can be managed with eye drops alone — no surgery, no vision loss — for decades. Diabetic retinopathy treated early often does not progress to vision loss at all.
The cost of an exam is small. The cost of preventable vision loss is enormous, and largely irreversible. Routine ophthalmologic care is among the highest-value uses of medical attention in adult life.
What a comprehensive exam includes
- Visual acuity and refraction
- Intraocular pressure measurement
- Slit-lamp examination of the cornea, iris, and lens
- Pupil reactivity assessment
- Eye muscle and binocular function
- Dilated examination of the lens, vitreous, optic nerve, and retina
- OCT imaging when indicated
- Visual field testing when indicated
- Discussion of medications, family history, and any visual concerns
Plan for 60-90 minutes for a thorough exam. Bring your current glasses, list of medications, and your insurance card. The dilation effect on near vision lasts a few hours; arrange transportation home if you don’t drive comfortably with dilated pupils.
If you have not been seen recently
If your last comprehensive eye exam was more than two years ago — or you don’t remember when it was — schedule one. The exam itself takes a single morning. The conditions it screens for can affect the rest of your life.
For more on what an ophthalmologist offers, see the Specialties page or the broader Ophthalmologist in Omaha overview.
