Fundus photography and Optical Coherence Tomography (OCT) are non-invasive ways to check the back of the eye. They are often used together, but each gives different information.
Fundus photography takes detailed pictures of the retina, optic disc, and macula. These images help detect and track conditions like glaucoma, retinal detachment, diabetic retinopathy, and macular degeneration.
OCT, on the other hand, uses light waves to create cross-sectional scans of the retina. It shows tiny changes in thickness and structure, making it especially useful for spotting early signs of glaucoma, macular degeneration, and other retinal diseases.
When combined, fundus photos show the overall view, while OCT scans reveal fine internal details. Together, they give optometrists a clearer picture of eye health and allow problems to be found and treated sooner.