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Optometrist At Holly & Derry in Milton, ON

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Home » Your Eye Health » Eye Exams » Common Tests » Eye Dilation

Eye Dilation

A truly comprehensive eye exam almost always includes eye dilation—the addition of special eye drops that “open up” the pupil at the front of the eyeball. This allows for a maximum amount of light to enter the eyeball, giving your eye doctor the best possible visibility during a variety of specific eye tests.

Eye dilation is common during an eye exam after preliminary testing of visual acuity, pressure testing, and any vision-correction measurements have been taken. Your eyes are dilated using special drops, by far the most effective way to examine the structures inside the eye, and the light-sensitive retina at the back of the eye.

Most eyecare professionals agree: eye dilation is a critical component of a comprehensive eye exam, and vital to the detection of symptoms of eye disease like macular degeneration, diabetic eye disease, glaucoma, cataracts and more.

Anything else I should know?

Having your eyes dilated doesn’t hurt—it just feels a little strange. Your pupil at the front of your eye automatically adjusts to light intensity, closing when light is more intense, and opening in lower lighting conditions—much like an automatic camera adjusts to take photos indoors or outdoors.

The drops used to dilate your eyes don’t wear off immediately, that’s why it’s recommended you bring sunwear with you to a comprehensive eye exam. And if you’re driving, you may want to consider having a friend with you to help you drive home, or assist you if you feel slightly disoriented.

(Remember, your eyes won’t automatically adjust to changing light conditions until the drops wear off.)

Can I have an eye exam without having my eyes dilated?

In short, yes. Most vision screenings done at a pediatrician’s office, health clinic or community health organizations don’t include eye dilation. But these basic vision tests cannot help you diagnose eye disease, and are certainly no substitute for a regular and thorough eye exam from a qualified eyecare professional.

Most eye doctors will tell you with very few exceptions, dilated eyes mean the best possible eye exam environment.

 

Special thanks to the EyeGlass Guide, for informational material that aided in the creation of this website. Visit the EyeGlass Guide today!

Dear Patients,

Today, under directions from the College of Optometrists of Ontario, we have made the difficult decision to immediately suspend all non-urgent care,  due to the COVID-19 pandemic. Our doctors will still be accessible for ocular emergency assessments case by case. The clinic is closed.

All non-urgent appointments will be canceled and rescheduled for a later date. For urgent care please DO NOT call or come to the clinic, but send an email to: info@miltoneyecare.ca for appropriate triaging.

For patients who need to order contact lenses, please continue to place your order request on our website at www.miltoneyecare.ca. We encourage a 6-12 months’ supply of contact lenses to be ordered.

What consists of an emergency: Ocular Emergencies require an urgent visit within 24-48 hours. Please email our office should you experience:

  1. Chemicals splashed into the eye within the last hour
  2. Sudden loss or decrease in vision, or the appearance of a cloudy veil in front of the eye
  3. Foreign body in the eye, ocular injury or forceful trauma to the eye or surrounding area
  4. Sudden onset of halos around lights; especially if associated with a red painful eye or brow
  5. Sudden onset of flashing lights or floaters
  6. Sudden onset of double vision
  7. Red eyes with pain, light sensitivity or pus discharge
  8. Swelling of eyelid

If you are not sure if you are experiencing an ocular emergency please email our office at info@miltoneyecare.ca

 As this situation evolves, Milton Eye Care is committed to providing updates to our patients. While this is a difficult time for all, we are aspired by our patients who have taken their own personal measures to protect our most vulnerable. Thank you for your understanding. Please stay safe and healthy.

Warmest regards,

Milton Eye Care team