Neuro Ophthalmologist
All vision problems need not necessarily stem from the eye. Some vision problems involve the brain. Neuro ophthalmology is the sub specialty of both neurology and ophthalmology. A neuro ophthalmologist is a phycian who specializes in the diseases affecting vision that originates from the nervous system. Conditions such as optic nerve disorders, loss of vision from central nervous system disease, double vision diplopia and involuntary movement of the eyes nystagmus are some of the disorders under the purview of a neuro ophthalmologist. An ophthalmologsit attends to patients with disease or injury in the eye ball, cornea and the lens or into the eyeball at the retina inside the eye. If any problem occurs behind the eye in the optic nerve or in some distinct visual pathways connecting the brain, it requires the special skills of a neuro ophthalmologist.
A neuro ophthalmologist could be an ophthalmologist or a neurologist with additional special training. After completing a residency program in any one of the two specialty areas, they take a fellowship in neuro ophthalmology for a year or two before starting to practice as a neuro ophthalmologist. A neuro ophthalmologist attends to a full spectrum of neuro opthalmic conditions including evaluation, diagnostic and referral services of rare and complex disorders. A neuro ophthalmologist caters to:
Patients who suddenly lose part of their side vision.
Patients suffering from double vision.
Patients with unequal pupils.
A patient suffering form a stroke.
A patient with brain tumor
Patients who suddenly have their vision out of focus
Any and every patient with unusual vision problems.
In addition to the above, a neuro ophthalmologist provides emergency evaluation of a wide variety of disease that can cause visual loss. Unexplained visual loss can arise out of uncommon disease conditions like myasthenia gravis, multiple sclerosis, mitochondrial disease and other muscular diseases that affect the eye. The neuro ophthalmologist uses special testing techniques including visual fields, visual evoked response, imaging studies such as CT, MRI and angiography and ultrasound to diagnose the disease patterns. It becomes necessary for the neuro ophthalmologist to work closely with other medical specialists to offer multidisciplinary care and solution for complex cases.
MRI
Magnetic Resonance Imaging (MRI) represents a breakthrough in medical diagnostics and research. Nearly 60 million investigations with MRI are performed every year worldwide. This imaging technique was awarded the Nobel Prize in Physiology in 2003. MRI has been used since the beginning of 1980s. MRI is primarily used in medical settings to produce high quality images of the inside of the human body. Magnetic field of radio waves energy is used to capture pictures of organs and structures inside the body. The MRI scan used magnetic and radio waves and therefore there is no exposure as in X rays or any other damaging forms of radiation. Since radiation is not used, the procedure can be repeated without problems.
MRI is used to examine the joints, spine and the soft parts of the human body such as liver, kidneys and spleen. An MRI scan is used in the diagnosis of diverticulitis, irritable bowel syndrome, intestinal gas, chronic pain, liver cancer, pancreatic cancer, Cardiomyopathy, Devic's syndrome and headaches in children. It is used in to study specific conditions such as:
Trauma to the brain, bleeding and swelling in the head
Brain aneurysm
Stroke
Brain tumor
Tumors or inflammation of the spine
Trauma of the spinal cord
Problems of vertebrae or intervertebral discs of the spine
Tears and aneurysms in the structure of heart and aorta
Information on glands and organs in the abdomen
Structure of joints, soft tissues and bones of the body
To direct surgery or to defer surgery.
During a MRI Scanning procedure, patient is made to lie in a closed area inside a magnetic field. This creates claustrophobic sensation in certain patients during the procedure. Normally a mild sedative is given prior to the MRI scan and this helps to alleviate the claustrophobic sensation. The new open MRI is open on three sides and this helps to alleviate the feeling of claustrophobia. The new open MRI scanner provides quality imaging with highest performance specifications with a powerful and stronger magnet. Scanning is also done much faster. It has the ability to detect diseases more accurately.
Seizures
Seizures are conditions when there is abnormal functioning of the brain leading to uncontrollable muscle spasms, altered levels of consciousness and behavior. This is usually traced to abnormal electrical discharge within the brain. Seizures may be localized or affect the whole body.
Seizures are classified into 3 based on the severity of attack and response:
Grand Mal - In this type of seizure, the whole body is racked with convulsions. There can be lack of consciousness or coma
Petit Mal - Only a part of the body is affected by this seizure
Absense - A type of seizure where the affected person is in a stupor and cannot be roused.
Seizures can occur due to poisoning, drug overdose, head injury or medical conditions such as hypoglycemia or neurological abnormality. Fever, brain tumor or other vascular problems can also trigger a seizure. If the brain experiences a sudden lack of oxygen, it can lead to a seizure. Febrile seizures are usually noticed when an infant or small child has high fever, greater than 102 degrees F. The child loses consciousness and experiences uncontrolled shaking of the body. Typically this seizure lasts for a minute or two. Seizures of this kind are not to be mistaken for epilepsy. Though they can be terrifying, febrile seizure attacks must be tackled with care. Place the child on the ground or safe place. Do not restrain movements and wait for the seizure to subside. Do not attempt to feed the child immediately after a febrile seizure. Most seizures are self-limiting. What is essential is to ensure that the person does not get injured during a seizure. Seek seizure first aid. Call a doctor at once if you notice labored breathing or bluish pallor. Epilepsy is a medical condition that is characterized by marked pattern of chronic seizures. Various tests such as spinal tap, heat CT scan or MRI and EEG (Electroencephalogram) can help in identifying the cause for the seizures.
|
