Doctor insights on:
Optic Nerve Damage Blindness
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
A complete nerve transection will leave an area totally numb. The distribution of the numbers depends upon where the nerve was cut. A partial nerve injury may leave the area tingly or incompletely numb. Finally even if the nerve is not cut the swelling and bruising to the tea can affect the nerve as well. Usually we consider sharp penetrating injuries as likely having nerve lacerations when sensation is lost. A hand surgeon can examine the hand and pinpoint the site or extent of nerve injury and recommend ...Read more
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
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
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
Progressive macular pucker 20/30 vision, distortion & glaucoma. Visual fIeld good,nerve damage 30-45%.Would vitrectomy cause glaucoma to progress?
Possible: Vitrectomy and glaucoma may have an association. It is suspected that glaucoma occurs more often in patients who have had vitrectomy and subsequent cataract surgery. An ongoing clinical trial is aimed to answer this question with more clarity. PROVE Study. http://www.aaojournal.org/article/S0161-6420(14)00344-3/references AND https://clinicaltrials.gov/ct2/show/NCT01162356 ...Read more
Surgery complication: With any surgery, there is the risk of complications. Some of possible complications are anesthesia complications, bleeding, blood clots, lung complications, infection, persistent pain, hardware failure, implant migration, nerve injury, spinal cord injury, sexual dysfunction .... ...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
Possibly: Nerve injury implies some kind of damage to the nerve itself. While spinal cord and nerves are both nervous tissue, nerves typically are structures that have branched outside the spinal cord. Injury to the sciatic nerve, for example, is not considered a spinal cord injury. They are very different structures. ...Read moreSee 1 more doctor answer
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
Neuropraxia is defined as a temporary loss of function of the nerve. Some nerves are purely sensory while others carry both sensory and motor fibers. Traumatic contusion injuries to nerves or nerve compressions can cause Neuropraxia. Sensory nerves like sural nerve in the leg or mixed sensory and motor nerves like the median and ulnar nerves in the forearm & hand ...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
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