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Why Are Dilated Eye Exams So Important?

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Having your eyes dilated may seem like a nuisance. But when you consider the benefits of a dilated examination, the temporary blurred vision and sensitivity to light that typically follow are definitely worth it.  

What Are Dilated Eye Exams? 

At some point during a comprehensive eye examination, your optometrist will shine a bright light into your eyes to examine the back of your eye, called the retina. The problem is that bright light causes the size of the pupil’s opening to shrink, which makes it hard for the optometrist to see a large portion of the retina. 

That’s why we apply special eye drops in each eye to keep the pupils open. A dilated pupil allows for a much more accurate assessment of your eye’s structures, including the focusing lens, blood vessels and tissues at the back of the eye called the retina, as well as the optic nerve and macula. 

Dilating the eyes makes it easier for your optometrist to detect the following conditions and diseases: 

  • Cataracts
  • Glaucoma 
  • Diabetic retinopathy
  • Macular degeneration
  • Retinal tumor 
  • Retinal detachment or retinal tears
  • Eye floaters

It’s important to note that many of these conditions can develop without noticeable symptoms, until they cause vision loss at which point treatment may be more challenging, making dilated exams all the more crucial. 

The Dilation Process

First, we will apply eye drops to each eye to trigger dilation of the pupil. Your eyes should be fully dilated about 10-20 minutes later. 

Your eyes will remain dilated for 4-6 hours, and during this time you may be sensitive to light. That’s because the larger pupil allows more light than usual to enter the eye. Many patients find it more comfortable to wear sunglasses until their eyes return to normal. 

Reading and using a computer may be difficult with dilated eyes, and your vision may be blurred. Some patients report feeling a tightening sensation in their eyelids, or headaches. 

Dilated eye exams are a crucial part of keeping your eyes healthy.  Advanced Eyecare also uses the Zeiss Clarus wide field camera to see the peripheral areas of the retina which can be prone to damage or detachment with such things as trauma, etc. To schedule your comprehensive eye examination, call Advanced Eyecare today!