Search results
Results from the WOW.Com Content Network
The RNFL formed by the expansion of the fibers of the optic nerve; it is thickest near the optic disc, gradually diminishing toward the ora serrata. As the nerve fibers pass through the lamina cribrosa sclerae they lose their medullary sheaths and are continued onward through the choroid and retina as simple axis-cylinders.
The GDx nerve fiber analyzers measure the retinal nerve fiber layer (RNFL) thickness with a scanning laser polarimeter based on the birefringent properties of the RNFL. Measurement is obtained from a band 1.75 disc diameters concentric to the disc. It projects a polarized beam of a light into the eye.
Medical examination of the optic nerve with an ophthalmoscope may reveal a swollen optic nerve, but the nerve may also appear normal. Presence of an afferent pupillary defect, decreased color vision, and visual field loss (often central) are suggestive of optic neuritis. Recovery of visual function is expected within 10 weeks.
In a study of 123 subjects with vision loss due to early stage giant cell arteritis, one-third of subjects had cotton wool spots present in their eyes. [2] Furthermore, because giant cell arteritis can lead to loss of vision and is associated with cotton wool spots, it is recommended to investigate for giant cell arteritis if cotton wool spots ...
Again, prognosis is variable and dependent upon the affected individual, treatment compliance, and degree of vision loss at diagnosis. In both toxic and nutritional neuropathy, vision generally recovers to normal over several days to weeks, though it may take months for full restoration and there is always the risk of permanent vision loss.
The fruit (yes, fruit) boasts nearly 10 grams of fiber per cup of sliced avocado, about a third of the daily recommended amount. This is great news for weight loss, as fiber can enhance fullness ...
Structural changes continue during adulthood as brain shrinkage commences after the age of 35, at a rate of 0.2% per year. [4] The rate of decline is accelerated when individuals reach 70 years old. [5] By the age of 90, the human brain will have experienced a 15% loss of its initial peak weight. [6]
Hair Loss in Women It’s normal to lose about 50 to 100 hairs a day . But it can be upsetting when you notice more hair loss than this, bald patches, a widening part, or a ponytail that keeps ...