Turbit definition, one of a breed of domestic pigeons having a stout, roundish body, a short head and beak, and a ruffled breast and neck. See more. Dictionary.com
The anterior angle. Lesions that involve the anterior angle of the chiasm, the point at which the optic nerve passes into and forms the chiasm, may show a junctional scotoma (Traquair, 1949) since there is at this point separation of the crossing and uncrossed fibers.
physiologic scotoma that area of the visual field corresponding with the optic disk, in which the photosensitive receptors are absent. positive scotoma one which appears as a dark spot in the visual field, the patient being aware of it.relative scotoma an area of the visual field in which perception of light is only diminished, or loss is restricted to light of certain wavelengths.he physiological blind spot is an example of a negative scotoma but it is usually referred to as a physiological scotoma.paracentral scotoma A scotoma involving the area adjacent to the fixation area. physiological scotoma See negative scotoma. positive scotoma A scotoma of which the person is aware.