The fundus is the only visible vascular bed ... A mydriatic agent such as tropicamide should be applied to each eye 20 min before the exam and allowed to take effect. In a darkened room, the ...

It is critical though that you have a dilated fundus examination. So dilated eye examination. Without the dilated examination, it is possible to miss changes that have occurred to the retina.

Learn about Medicare's eye health coverage, including eligibility and costs, to preserve your vision as you age.