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Dr. Keg's Thoughts

OPTOMAP MEANS YOU DON’T HAVE TO BE DILATED
September 18, 2014

The reason we dilate pupils is so we can see inside the eye. Historically, we needed to do that so we had a good view of the retina. Since 2002, however, we use the Optomap which allows for a wide-field digital retinal image taken through a normal-sized pupil without drops. Optomap allows us to see the full extent of the retina and you get to review that with us on a flat-panel monitor so you can see what we see.  

A June 2012 American Journal of Ophthalmology report compared non-dilated ultra-widefield images and dilated diabetic 7 field (ETDRS) photos in 103 patients with varying levels of diabetic retinopathy. The two images exactly matched for clinical level of diabetic retinopathy in 84% of patients and were within one level of agreement in 91%.  Sensitivity and specificity of ultra-widefield images for detecting the presence or absence of diabetic retinopathy (DR) diagnosed on ETDRS photos were 99% and 100%.

There are cases where dilation is necessary, such as peripheral cataracts and certain retinal problems where we need a more 3-D view. Routine dilation for a vision exam is not always necessary. When we do have to dilate, the drops make the pupil bigger and freeze the focusing system. In summary, while a comprehensive eye health exam formerly required dilation, technology with ultra-wide field digital imaging has redefined the standards. Our patients benefit and appreciate this new technology.

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3252 Aspen Grove #1
Franklin, TN 37067-7216
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