What Is A Dilated Eye Exam And Why Is It Important?

A dilated eye exam is an essential test used by ophthalmologist to gain a better view of the inside of your eyes and assess your overall eye health. In this article, we’ll explain what’s involved in a dilated eye exam and explain why they are a crucial part of eye care. 

A dilated eye exam involves the application of special eye drops that cause the pupils (the black centre of your eyes) to expand, or ‘dilate’. This process facilitates a more comprehensive view of the retina and optic nerve at the back of the eye. A dilated eye exam is much more than a mere vision test: it’s a thorough health check for your eyes.

During the eye dilation test, an ophthalmologist uses an instrument called an ophthalmoscope. This device shines a light into the eye, allowing them to observe the structures within, including the retina, optic nerve, blood vessels and more.

The comprehensive nature of a dilated eye exam makes it an essential tool in detecting various eye conditions and diseases. It can help diagnose:

• Glaucoma: this disease affects the optic nerve and can lead to vision loss if not treated early.
• Age-related macular degeneration: this condition causes loss of central vision.
• Diabetic retinopathy: this is damage to the blood vessels in the retina caused by diabetes.
• Retinal detachment: this is a serious and sight-threatening condition, where the retina pulls away from the back of the eye. 
  

Typically, the dilation process takes about 15-30 minutes. Once dilated, your pupils will typically take 2-4 hours to return to normal. Post-examination, the dilation effect can linger, causing light sensitivity and blurry vision for a few hours. It’s important to bring along a pair of sunglasses for comfort and arrange for a friend or family member to drive you home afterwards. 

Regular eye dilation tests can prevent minor eye health issues from becoming major ones. So, if you are in Townsville and your eyes need a comprehensive check-up, visit 130eye. Our ophthalmologist, Dr Glastonbury, has more than 30 years’ experience and is committed to providing comprehensive and professional eye care services. Schedule your dilated eye exam today and let's ensure your eyes remain as healthy as possible.