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.
Glaucoma is diagnosed using three pieces of information: the appearance of the optic nerve, the eye pressure, and the results of specialized testing. Optic nerve-the optic nerve is like a telephone cable that connects the eye and the brain. It has the appearance of a yellow-orange circle in the back of the eye.The circle actually looks more like a crater or donut in three dimensions.Glaucoma causes changes in the appearance of the optic nerve â the crater gets deeper with thinner walls, or the donut gets a much bigger hole and a thinner rim (see diagram to left).he circle actually looks more like a crater or donut in three dimensions. Glaucoma causes changes in the appearance of the optic nerve â the crater gets deeper with thinner walls, or the donut gets a much bigger hole and a thinner rim (see diagram to left).