Optic neuritis is inflammation of the optic nerve that causes blurred, grey and dim vision.
Our sight relies on the optic nerve transmitting information on shape, colour and pattern from the back of the eye (retina) to the brain’s visual centres. Each has characteristic features which may help to differentiate between them (Table 1 on page 70).In primary optic atrophy (Figure 1 on page 71) there is no previous swelling of the optic disc. In the fovea, which has high acuity, these ganglion cells connect to as few as 5 photoreceptor cells; in other areas of retina, they connect to many thousand photoreceptors. The area to the right of center without blood vessels is the macula with its central fovea (green arrow). Gliomas tend to be a disease of early life: 90% present by age 20. Meningiomas have a peak incidence between 30 and 60 years of age.
5 The origin of the serous fluid is not completely understood, however. Helpful, trusted answers from doctors: Dr. Goldie on spot on optic nerve: It is difficult to identify a blind spot and distinguish it from the "usual bind spot". [1] Within this diagnostic group are MEWDS, Acute Posterior Multifocal Placoid Pigment Epitheliopathy (APMPEE), Mulifocal Choroiditis and Panuveitis (MCP), Punctate Inner Choroiditis (PIC), and Birdshot … Inflammation of this nerve is called optic neuritis. Multiple Evanescent White Dot Syndrome (MEWDS) is one of the diagnoses within the family of White Dot/ White Spot Syndromes, first described by Jampol L. M and colleagues. 95% are unilateral and there is a 4:1 female preponderance.

Tumours of the optic nerve [] Optic nerve glioma and optic nerve sheath meningioma. Needs to be evaluated with retina and optic nerve examination and find out if any treatment would help. It can effect one optic nerve or both optic nerves at the same time. During optic neuritis inflammation can cause damage to the protective sheath surrounding this nerve and the nerve itself.

Ophthalmoscopic classification. Optic nerve pits rarely affect visual acuity, unless the patient develops a serous macular detachment. By recognizing retinal abnormalities on examination, the clinician can detect a variety of systemic diseases. Spot on optic nerve Sherry546 Distance in right eye is blurred, on last exam at eye doctor I was told there was an abornamality or a "spot" on my optic nerve that would have to be watched, this was over a year ago,I have noticed a significant difference in my glass prescription, they donot let me focus properly. The optic nerve begins at the optic disk, Going to the optic nerve are the retinal venules (blue arrow). Optic nerve, second cranial nerve, which carries sensory nerve impulses from the more than one million ganglion cells of the retina toward the visual centres in the brain. The optic nerve connects the eye to the brain. Optic Pits (also known as optic nerve pits, optic disc pits, or less commonly optic holes) are congenital defects presumably arising from the failure of fetal fissure closure in embryogenesis. Optic atrophy can be classified into primary, secondary and consecutive optic atrophy. These are the principal tumours of the optic nerve. Decreased vision occurs in cases if optic pit related maculopathy ensues with either macular edema or serous detachment of the macula. Vision symptoms from optic neuritis can include blurring, blind spots or complete loss of vision. The optic nerve is composed of retinal ganglion cell axons and glial cells.Each human optic nerve contains between 770,000 and 1.7 million nerve fibers, which are axons of the retinal ganglion cells of one retina. The vast majority of optic nerve fibres convey information regarding central vision.