Ageing and Eyes

Sight-saving eye exams for seniors

Elderly woman getting annual eye exam
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Many people don't realise how untreated, age-related eye changes can harm vision and, eventually, their entire quality of life.

Outcomes can be devastating when an older person waits too long for an eye exam.

Here are some important reasons why annual eye exams are important, especially when you become an older adult.

Eye tests for older people

You should have these important eye and vision tests performed by an eye doctor on a regular basis:

Eyeglasses in front of seeing chart

Eye exams are vitally important for older people.

  • Eye pressures
  • Visual field (side vision)
  • Dilated retinal examination
  • Slit lamp (microscope)
  • Refraction

Each test gives your optician essential information about the health of your eyes and how your vision is performing.

Eye pressure testing (tonometry) is one of the ways your optician will monitor your eyes for glaucoma, a leading cause of blindness.

Glaucoma usually has no symptoms until it becomes very advanced, at which point it's too late to save your vision. But if glaucoma is found early enough with proper testing, the eye disease can be treated effectively to preserve your vision.

Visual field testing is another way your optician will check for glaucoma. This test also can help detect serious problems like brain tumours, aneurysms, strokes and other brain diseases, which often are more common in older people.

A dilated retinal examination is vitally important to your eye health. By looking through an enlarged pupil (or imaging the retina with a special laser instrument), your optician can spot many health problems and diseases.

The pupil provides the only easily available window into the body. Here are some of the many benefits of an exam of the retina through a dilated pupil:

Older woman receiving an eye exam

Eye exams sometimes uncover other problems, such as diabetes.

  • By looking for changes in the optic nerve, your optician can tell if glaucoma is present.
  • By examining the most sensitive part of the retina (macula), your doctor will look for signs of macular degeneration.
  • By examining your eye's lens, signs of cataracts can be detected.
  • Damage to the eye's arteries and veins (blood vessels) can give your optician clues about the presence of diabetes, hardening of the arteries, high blood pressure, cholesterol damage and other blood diseases.

During your eye exam, your optician will perform a slit lamp examination of your eyes with a high-power biomicroscope to carefully inspect the structures of the anterior (front part) of your eyes to look for conditions such as dry eyes, corneal dystrophies, pingueculae and pterygia (lumps and bumps on the sclera and cornea), eyelid disease, cancerous changes and other abnormalities.

With an additional small (often hand-held) lens, the slit lamp also can give your optician a magnified, 3D view of the retina and other structures in the back of the eye.

A refraction is the procedure to determine your prescription for eyeglasses. But changes to your glasses prescription also can indicate conditions including diabetes, cataracts, and thyroid problems. Opticians know these conditions can trigger certain, specific changes in your eyesight. For instance, diabetes can cause wild swings into short sighted, and thyroid problems can cause double vision.

Routine eye exams are an extremely important part of your health care. If you haven't had an eye exam in the past year, find an optician near you.

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