Sentences with phrase «optic nerve head»

It is not unusual to see a thin halo of altered reflectivity or conus papillaris around the optic nerve head as seen in B and C. (D — F) Stage 1 is characterized by multifocal red or brown discoloration of the tapetal fundus (arrows).

Retinal ganglion cells downregulate gene expression and lose their axons within the optic nerve head in a mouse glaucoma model Soto, I., Oglesby, E., Buckingham, B.P., Son, J.L., Roberson, E.D., Steele, M.R., Inman, D.M., Vetter, M.L., Horner, P.J. & Marsh - Armstrong, N. (2008) Journal of Neuroscience, 28:548 - 61.

Summary: Glaucoma is one of the leading causes of blindness worldwide characterized by irreversible damage in the optic nerve head (ONH).

We're focused on glaucoma and it has to do with a set of very surprising findings in a region that we know is critical for axon loss in glaucoma, which is the optic nerve head.

The pattern of RGC loss in patients as well as information obtained from laboratory research all point to the fact that an important site of pathology occurs at the optic nerve head, a region where the axonal cell processes of RGCs exit the eye on their way to the visual centers of the brain.

I have been working in the field of glaucoma research, on pathophysiology and diagnostics, for the past 18 years, and have become increasingly interested in the use of advanced imaging techniques for characterization of glaucomatous changes within the retina and optic nerve head.

We observed YFP - labeled processes exiting the induced eye at the optic nerve head that followed the expected trajectory of RGC axons to their tectal targets (Figure 4E).

Consistent with the presence of donor - derived RGCs, YFP - labeled processes were detected exiting the eye at the optic nerve head (Figures 4E, 5B, and S2B).

Not exact matches

The optic nerve is working, and your baby will often turn her / his head to look in the direction of a light shining on your belly.

When someone suffers a head trauma, sometimes there is damage to the optic nerve that is responsible for passing information between the eyes and the brain.

Evaluated were vascular structure, the head of the optic nerve, and the macula of the eye, which is the point of sharpest vision.

Structural eye anomalies (in particular, microphthalmia and coloboma), cataracts, intraocular calcifications, and posterior ocular findings have been reported in infants with presumed and laboratory - confirmed prenatal ZIKV infection; however, posterior findings have been the most prevalent.21,25,28,33,35,36,41 - 43 Case series report chorioretinal atrophy, focal pigmentary mottling of the retina, and optic nerve atrophy / anomalies.28, 34,37,41 - 43,55 Series of 20 or more infants with presumed ZIKV - associated microcephaly report ocular findings in 24 % to 55 %.28, 33,42 In one study, testing for ZIKV IgM was performed in 24 of 40 infants (60 %) with microcephaly and the results were positive in the cerebrospinal fluid in 100 % of those tested.42 The proportion of infants with ocular lesions did not differ in those with and without testing.42 In that series, first trimester maternal infection and smaller head circumference significantly correlated with the presence of abnormal ocular findings.42

Sneezing generates a lot of pressure in your head, which can in turn put pressure on the retina — the light - sensitive layer of tissue inside your eyeball — or optic nerve.

The accident left her with head, neck and back injuries as well as a ruptured optic nerve in her right eye, memory and spatial problems, a speech impediment and chronic headaches.

As the disease progresses, the head of the optic nerve, which can be seen exiting the back of the eye starts to look atrophied,» he said.