Transillumination (redirected from ocular transillumination)

transillumination /trans·il·lu·mi·na·tion/ (trans?i-loo?mi-na´shun) the passage of strong light through a body structure, to permit inspection by an observer on the opposite side.

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Transillumination

A technique of checking for tooth decay by shining a light behind the patient's teeth. Decayed areas show up as spots or shadows.

Mentioned in: Tooth Decay

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transillumination (tran´siloo´minā´shn),

n 1. examination of an organ, cavity, or tissue (e.g., tooth or gingival tissue) by transmitted light. A valuable aid in detecting carious lesions, disclosing carious or demineralized dentin during cavity preparation, checking the finish or gingival margins of restorations, and revealing cement, debris, or calculus subgingivally.
2. a test in which the use of transmitted light may disclose a discoloration of the coronal aspect, indicating dentinal tubular hemorrhage as a result of trauma, pulpal necrosis, or fracture.
3. examination of tissues by means of a light placed so that the region under study is between the light source and the observer.

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transillumination

the passage of strong light through a body structure, to permit inspection by an observer on the opposite side.

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ocular transillumination

intense light placed on the sclera behind the ciliary body is transmitted to the interior of the eye, producing a tapetal reflex. Useful in identifying the presence of intraocular masses and demonstrating atrophy of the iris.