Doctor insights on:
Optic Nerve Transplant
No recourse: A crushed optic nerve (how did this happen to you?) causes permanent changes which will alter the vision sometimes severely. There is currently no treatment known for this and a transplant is not possible. A discussion with a neuro-ophthalmologist would be helpful in this situation. ...Read more
In medicine: a transfer from one body or body part to another of an organ (liver, heart, lung, kidney, pancreas bowel) or tissue (hand, face, hair). The immune system fights foreign invaders (like infections) so it will reject transplants from other people (allotransplants) because they look like infections. So transplants usually require drugs to ...Read more
Depends: On time, severity, etc. Specifically depends if the neurons have died (not recoverable at this time since an extension of the central nervous system) or are just in "distress" and could recover when the inflammation or inciting factor is resolved. Typically, not reversible to normal. ...Read moreSee 1 more doctor answer
Sometimes: Some optic nerve damage is reversible. For example, optic neuritis frequently recovers completely, when the cause is found and can be treated. Optic neuropathy due to vascular disease sometimes recovers. Traumatic injuries of the optic nerve may or may not recover. ...Read moreSee 1 more doctor answer
Visual cable: The optic nerve, the head of which is described in the back of the eye by your ophthalmologist as the disc, is the cable carrying visual information into the brain where it ends up in the occipital lobe and interpreted as vision. It contains over 1.2 million fibers as well as supporting elements.A truly amazing nerve. ...Read moreSee 3 more doctor answers
Slowly over time: Typically open angle glaucoma causes loss of ganglion cells with progressive thinning of the retinal nerve fiber layer faster than age-related loss slowly over time (thus generally asymptomatic), eventually leading to an enlarged optic nerve cup seen on eye exam. The optic nerve appears pale with loss of tissue and remodeled laminar changes. ...Read moreSee 1 more doctor answer
Recently diagnosed with glaucoma. No peripheral vision loss. 30% optic nerve damage. With treatment will nerve damage cause loss of vision?
Probably not: Glaucoma is readily treated with anti-pressure medication which should prevent any further damage in almost all cases. This is handled by ophthalmologists (you are not seeing an optometrist i hope?) who deal with this daily. There is a step ladder of treatments -- medication, laser, surgery to prevent further damage which can be quite effective. ...Read moreSee 2 more doctor answers
Glaucoma with 30% optic nerve damage. No peripheral vision loss. For patient to notice peripheral vision loss, how much nerve damage must there be?
Variable: This depends upon the sensitivity of the nerves under the stress of the elevated pressure in the eye. Some will loss measurable amounts of vision at 30% damage, others require more loss to detect it. There is good adaptation so it takes a sensitive person to best detect loss. Best to get treatment and avoid any loss at all. ...Read moreSee 1 more doctor answer
Good question: I wish I could remember. When I have a question about that, I get out my old anatomy book from med school and look it up. The book is 1100 pages long. I refer to it frequently when I want to relearn what peripheral nerve innervates what structure. For laypeople I recommend Frank Netter's Atlas of Human Anatomy. It's available from Amazon. ...Read moreSee 1 more doctor answer
Unfortunately yes: Retinal detachment often disrupts the supply of blood to the retina. This can result in loss of pressure control, glaucoma and optic nerve damage. Rd surgery often involves a vitrectomy, removal of the vitreous humor from the eye. Optic nerve damage can result from such surgery. Caught and appropriately treated early, rd should not result in damage to the optic nerve. ...Read more
The brain and spinal cord communicates with what is occurring in the internal organs and limbs by nerve fibers where are like electrical wires with insulation (myelin) and the "copper" (axon). Within brain and spinal cord these nerves connect to other nerves via synapses on both axons and dendrites. A nerve can carry information regarding sensations, and ...Read more