Also found in: Dictionary.
1. the testing of color vision using light beams to mix color stimuli.
2. the diagnosis of renal function by the color of urine following administration of dyes; called also chromoscopy.
Miller-Keane Encyclopedia and Dictionary of Medicine, Nursing, and Allied Health, Seventh Edition. © 2003 by Saunders, an imprint of Elsevier, Inc. All rights reserved.
chromoscopyA format for oesophageal endoscopy of patients with suspected Barrett’s oesophagus, in which the oesophageal mucosa is painted with toluidine blue—a dye that highlights dysplasia within the metaplastic segment. Other dyes used include Lugol’s iodine, which leaves metaplastic epithelium unstained and is thought to improve demarcation. Indigo carmine is used in Japan. Regardless of the colour, the procedure may not improve detection rates of Barrett’s oesophagus.
Segen's Medical Dictionary. © 2012 Farlex, Inc. All rights reserved.