Eye Exam: A Vital Step in Protecting Your Vision and Health

Protecting your vision takes more than a quick checkup. A regular eye exam guards both your sight and your overall health.

Clear vision does not always mean healthy eyes. Even with perfect sight, you can have a problem that an exam would catch before symptoms start.

Your eyes also give clues about your general health. Conditions such as diabetes and high blood pressure can show up in a thorough eye exam.

Protecting Your Vision Through Early Detection

Regular exams can find serious eye conditions early. Glaucoma, cataracts and macular degeneration often grow slowly and with no clear symptoms. By the time you notice a change, damage may already be done, and some of it cannot be undone.

An exam can catch these conditions sooner, while treatment has the best chance to work.

Glaucoma. People call glaucoma the “silent thief of sight.” It damages the optic nerve, which sends visual information from your eye to your brain.

Because it grows slowly, many people do not know they have it until they lose a lot of vision. An exam can find high eye pressure, a key sign of glaucoma, so your doctor can start care early.

Learn about glaucoma screening.

Cataracts. A cataract clouds the eye’s natural lens.

It leads to blurry vision, and if left untreated, it can lead to blindness. Cataracts are more common in older adults, but they can develop at any age.

Early detection can lead to timely treatment, often with surgery, that restores clear vision. See our page on cataracts for adults.

Macular degeneration. This is the leading cause of vision loss in older adults. It affects the macula, the center of the retina that gives sharp, detailed vision.

Early stages may have no symptoms, but an exam can reveal early signs. Early detection allows treatment that can slow the disease and help save vision.

Eye Exams and General Health

The eyes are one of the few places where doctors can see blood vessels and nerves directly. That lets an eye exam show signs of body-wide conditions.

• Diabetes: Diabetic retinopathy affects the blood vessels in the retina. It often has no early symptoms, but an exam can spot small changes. Finding it early helps with protecting your vision.

  It can also lead to testing and care for diabetes. Read about the diabetic eye exam.

• High blood pressure: Changes in the retina’s blood vessels can signal hypertension. High blood pressure can thicken blood vessel walls. Spotting this early allows timely care, which can lower the risk of heart disease and stroke.

• High cholesterol: Yellowish deposits around the eyes, called xanthelasma, can be a sign of high cholesterol. A white or gray ring around the cornea, called arcus senilis, can also be a sign. Small findings like these can prompt a closer look at your health.

Your eye doctor can tell you what a finding means. Please talk with your primary care doctor about any health concerns.

Vision Screening vs. a Full Eye Exam

Vision screenings are often the first step. They happen at schools, workplaces and health fairs. They flag people who may need more testing.

A screening does not check the overall health of your eyes or find early eye disease. See more in our guide to eye exam vs screening.

A complete exam includes several tests:

• Visual acuity test: This measures how clearly you see with an eye chart.

• Refraction test: This finds the right prescription for glasses or contacts.

• Tonometry: This measures eye pressure, which is key for glaucoma.

• Slit-lamp exam: The doctor looks at the parts of your eye under high magnification.

• Dilation: Drops widen your pupils for a better view of the retina and optic nerve.

Protecting your vision means knowing your eyes are healthy, and a regular exam tells you that.

Make Protecting Your Vision a Habit

Schedule your next exam before a problem shows up.

Book your eye exam today or call (352) 399-5412.