GuideDiagnostic Laboratory Methods

Dark Field Microscopy

A light microscopic technique in which the light that does not come into contact with the structures or details of interest is subtracted from the ocular image. This yields an image in which the structures or details are alight while the areas where the structures or details are absent are dark.

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Updated
2026-10-18
Author
National Cancer Institute (source definition)
Reviewer
Automated source check (NCI definition)

What it is

A light microscopic technique in which the light that does not come into contact with the structures or details of interest is subtracted from the ocular image. This yields an image in which the structures or details are alight while the areas where the structures or details are absent are dark.

Source: National Cancer Institute, NCI Thesaurus 26.09d, C85837. NCI definition, reproduced without modification under CC BY 4.0.

Source identity and definition checked automatically on 2026-10-18. No individual clinical interpretation or human reviewer is asserted.

Compliance note

Reference intervals and interpretation depend on the laboratory, specimen, method and clinical context. This source definition is educational information; it does not establish a diagnosis, product approval or suitability for an individual.