KnowraOptical coherence tomographyLinked fromLinked fromThe 36 pages that link to Optical coherence tomography, each with the reason it gives.All 36Broader topic 2Related 31Compared with 3ElectroretinographyCompared with: OCT shows retinal anatomy; ERG measures function, so the tests can reveal different abnormalities.Visual field testCompared with: It images structure that field testing measures through visual performance.OphthalmoscopyCompared with: It reveals retinal layers in cross-section rather than relying only on a viewed fundus image.