Ocular Coherence Topography (OCT)
This detailed, cross-sectional image of your retina is recommended when your Optometrist is targeting specific pathology like Macular Degeneration, or possibly monitoring the progression of Glaucoma or Diabetic Macula Edema. It's like looking at a slice of layer cake. Your Optometrist can see the icing or outer layer when they look inside your eye; the OCT shows them the layers underneath.
The OCT scan is a painless way to diagnose eye diseases that tend to progress without any symptoms in the early stages - eye diseases that could lead to irreversible blindness.