03/08/2026
An OCT eye test is a non-invasive imaging scan that uses light waves to produce detailed, cross-sectional images of the tissues at the back of the eye. These images allow an eye-care professional to examine individual layers within the retina and assess structures such as the macula and optic nerve.
Learn what an OCT eye test examines, how the scan works, and why your optician may recommend detailed imaging of the retina and optic nerve.