The Clinical Measurement Ontology (CMO), Measurement Methods Ontology (MMO), and Experimental Condition Ontology (XCO) are currently being developed at the Rat Genome Database. For more information about these vocabularies please see Shimoyama et al. Three ontologies to define phenotype measurement data. Front Genet. 2012;3:87. Epub 2012 May 28 or contact us (http://rgd.mcw.edu/contact/index.shtml).
Examination of the eyes using a slit-lamp, an instrument in which a high-intensity beam of light is projected through a narrow slit, and a cross section of the illuminated part of the eye is examined through a magnifying lens, allowing visualization of the external, surface, and internal segments of the eye, including the eyelid(s), lashes, conjunctiva, cornea, anterior chamber, pupil, iris, vitreous and, when a secondary lens is used, the retina.