Pale optic nerve head
Introduction
Introduction Clinically, the color of the nipple is lightened or pale, which is called optic atrophy. Strictly speaking, optic atrophy refers to the degeneration of the optic nerve, which causes the color of the optic papilla to become pale or pale. Therefore, it should be determined from the color of the optic nipple and its function, that is, vision, field of vision, and the like. The light or pale color of the optic papilla refers to the pale color of the optic nerve head, which loses its normal orange-red color and is pale yellow or pale. It is usually caused by neurofibrosis. It can also be caused by a decrease in blood vessels on the surface of the optic papilla or a proliferation of glial tissue.
Cause
Cause
The papillary color is pale or pale and is generally caused by neurofibrosis. It can also be caused by a decrease in blood vessels on the surface of the optic papilla or a proliferation of glial tissue.
Examine
an examination
Related inspection
CT and retinal retinoscopy in the eye and temporal region
The color of the optic nerve head is light and loses its normal orange-red color, which is pale yellow or pale. In the primary, the boundary of the optic nerve head is clearly defined, the physiological depression can be clearly identified or slightly enlarged, the mesh hole of the base of the recess is clearly visible, and the blood vessels of the retina are slightly thin; secondary, the edge of the optic nerve head is blurred, The boundary is very unclear. The surface of the optic nerve head is covered with glial tissue or organic chemistry. The physiological depression disappears. The sieve plate tissue and the retinal blood vessels become thinner. The blood vessels near the optic nerve nipple often have white lines.
Diagnosis
Differential diagnosis
(1) Axonal optic atrophy is the consequence of inflammatory damage of the macular fiber bundle in the nipple. The nipple is pale and the pale area reaches the edge of the nipple. The field of view has a dumbbell-shaped dark spot connected to the physiological blind spot.
(2) spinal cord optic atrophy (tebes optic atrophy), found in late syphilis. Optic atrophy secondary to vascular changes caused by optic nerve sheath. There is also Argyll-Robertson (the pupil shrinks, the light reflection disappears, the adjustment of the reflection exists), the eyes are progressively atrophied, and eventually completely blind.
(3) Traumatic optic atrophy is caused by optic nerve bone parenchyma, cutting or contusion of the optic nerve. Atrophy occurs 3-4 weeks after trauma. Often one side. There are signs of trauma and X-ray skull base fracture indications.
(4) optic atrophy caused by intracranial inflammation, common in tuberculous, cryptococcal meningitis or optic nerve arachnoid inflammation limited to the optic nerve intracranial segment, the subsequent descending optic atrophy.
(5) Intracranial tumor growth is slow, optic nerve blood supply disorder, hypoxia and directly trapped in atrophy, and finally the development of the optic nerve head pale.
Degeneration and conduction dysfunction of the optic nerve fibers, decreased vision, and even permanent blindness of the eyes.
The color of the optic nerve head is light and loses its normal orange-red color, which is pale yellow or pale. In the primary, the boundary of the optic nerve head is clearly defined, the physiological depression can be clearly identified or slightly enlarged, the mesh hole of the base of the recess is clearly visible, and the blood vessels of the retina are slightly thin; secondary, the edge of the optic nerve head is blurred, The boundary is very unclear. The surface of the optic nerve head is covered with glial tissue or organic chemistry. The physiological depression disappears. The sieve plate tissue and the retinal blood vessels become thinner. The blood vessels near the optic nerve nipple often have white lines.
