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Why Do Eye Doctors Dilate Your Eyes?

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Woman undergoing eye exam by her optometrist while having eye dilated.

If you are concerned about developing an eye disease, a dilated eye exam can be the most effective way to diagnose and start treating an eye disease early into its development. Dilated eye exams involve dilating your pupil to allow your eye doctor to see into your eye more clearly. If you want to learn more information about dilated eye exams, you can contact our office and schedule an appointment.

What Is a Dilated Eye Exam?

Dilating your pupil will allow more light to enter your eye. Dilation helps the doctor check for common eye problems, including diabetic retinopathy, glaucoma, and age-related macular degeneration.

A dilated eye exam is an effective way to check for eye diseases early on when they’re easier to treat and before they can cause any vision loss.

A dilated eye exam will begin with the doctor checking for vision problems that make it hard to see clearly, like myopia or hyperopia. Afterward, your doctor will give you some eye drops to dilate your pupil and check for eye diseases.

Since many eye diseases have no symptoms or warning signs, you can be completely unaware if you have a condition that will eventually cause vision problems. A dilated eye exam will help catch eye diseases early on and make the treatment options for your specific condition more effective as a result.

For a few hours after a dilated eye exam, your vision may be blurry and you may be sensitive to light, so you will need a friend or family member to drive you home from your appointment.

If your eye doctor finds any refractive errors during the exam, you may get a prescription for eyeglasses or contact lenses.

How Often Do You Need a Dilated Eye Exam?

How often you need a dilated eye exam will depend on your risk of developing an eye disease. Get a dilated eye exam every 1 to 2 years if you:

If you have diabetes or high blood pressure, converse with your doctor about how often you need an exam. People with diabetes or high blood pressure might need to get a dilated eye exam at least once a year.

Young man getting eye exam from his optometrist

What Happens During a Dilated Eye Exam?

A dilated eye exam includes:

Do I Need a Dilated Eye Exam?

Whether or not an eye dilation during an exam is necessary for you depends on the reason for your exam, your age, your overall health, and your risk of eye diseases.

Eye dilation will assist your doctor in diagnosing common diseases and conditions at their earliest stages. Some common diseases include:

Pupil dilation will make your vision blurry and your eyes more sensitive to light, which, for a few hours, can affect your ability to drive or work. So if eye dilation would be greatly inconvenient for you, you should ask your doctor about arranging an appointment for another time. Alternatives to dilation are available, but they aren’t as effective for allowing a careful examination of the back of your eye.

When determining whether or not a dilated eye exam is necessary for you, your eye doctor may consider the following:

Written by Total Vision

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