Abstract: This research paper focuses on the subspecialty of Neuro-ophthalmology and address the different disorders that are treated by an Neuro-ophthalmologist. what makes neuro-ophthalmology unique to all other sub-specialties, and how this contributes to making neuro-ophthalmology not only one of the most medically interesting, yet rewarding sub-specialties in ophthalmology.
Ophthalmology is about saving the vision, but neuro-ophthalmology is sometimes also about saving lives. Isn’t that why we all went into medicine in the first place? There is no other sub-specialty of ophthalmology that relies as heavily on the ophthalmologist's skill in and use of general medicine.
Neuro-ophthalmology, is a subspecialty of both neurology and ophthalmology. Neuro-ophthalmologists analyze and treat visual issues related to disorders involving the nervous system, that is, visual issues that don't originate from the eyes themselves. Some common pathology referred to a neuro-ophthalmologist includes visual system disorders, which include optic neuritis, optic neuropathy, brain tumors or strokes. Other efferent visual system disorders that are commonly found in patients who see a neuro-ophthalmologist are diplopia, ptosis, and nystagmus. Neuro-ophthalmologists initially complete a residency in either neurology or
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It causes inflammation of the nervous system that comes and goes; people who develop MS can have any number of neurological symptoms. MS has been strongly linked to optic neuritis. Neuritis Optic does not affect the eyes themselves. Most forms of optic neuritis happen behind the eye and damage the vision signal sent from your eyes to your brain. If this signal is broken up in any way, you may have blurred vision, darkened vision, decreased color vision, or decreased peripheral vision. The most common symptom of optic neuritis is decreased
may also be affected in deleterious ways. They can have blurred vision, decreased sensation of limbs, unable to locate them without looking, decreased sense of taste, ringing of the ears etc. 2. What is the difference between a '' and a ''? Two ideas about the nervous system that can be better understood from these observations are the concepts of having and locating the I-function. It seems that the I-function here is very often affected in terms of voluntary movement.
Seltzer, Jo. "Ophthalmologists Express Skepticism About Vision Therapy." Stlbeacon.org. N.p., 30 Nov. 2010. Web. 1 Mar. 2014.
MS causes a degeneration of the myelin around axons due to the killing off of oligodendrocytes, which are cells that make up the myelin sheath of an axon; losing myelin decreases the neuron’s ability to propagate an action potential. Since this disease affects the central nervous system, MS can cause dysfunction of both the sensory and the motor aspects of the body. Some common sensory complaints(Lundy-Ekman, 2007) of MS are tingling, numbness, and/or paresthesia in the affected area, which is variable but typically involves one or more limbs (Palace, 2001), as well as partial blindness in one eye, a decrease in vision acuity, and double vision. Lhermitte’s sign, which is a radiating shock that travels down the back or limbs, is another common characteristic of MS that aff...
Three lines of evidence suggest that PVS patients are "noncognitive, nonsentient, and incapable of conscious experience [12]." First, motor and eye movement, and facial expressions in response to stimuli occur in stereotyped patterns rather than learned reactions. Second, positron emission tomography reveals cerebral glucose metabolism at a level far below those who are aware or in locked in states. PVS levels are comparable to those in deep general anesthesia and as such are totally unaware and insensate. Third, neuropathological examinations of PVS patients show "lesions so severe and diffuse [12]" that it would be almost impossible, giving our current understanding of neural an...
My interest in the career of optometry stems from my first experience in the optometry office to receive my first pair of glasses when I was in middle school. I distinctly remember the moment when my optometrist slipped my new glasses over my eyes for the first time. Suddenly, everything in the room came into sharp, clear focus. I knew that the glasses would help me see the board in school, but I was astonished to find that I could see small details about the room, as it had never before occurred to me that I should have been able to see these details. I was also surprised that I was even able to see the expressions on the faces of people who were standing far away from me. It was one of the most incredible, freeing, and empowering moments of my life. As I walked out of the optometry office, I felt
So what is happening chemically to the people with MS? The disease is an Autoimmune which this will destroy the cells which are in your body. The immune system is going to attack the tissue which it is going to affect the Myelin. When the Myelin is damaged which is when the T cells over react , and cause them to damaged. That is what happens Chemically with MS people.
Introduction: This report is to discuss an experiment to assess the sensory and motor functions of the facial nerve in humans. The facial nerve is one of twelve cranial nerves that innervates the head and neck. These nerves serve a variety of functions, both sensory and motor, and are responsible for moving the muscles in the face, head and neck, and receiving information the brain can interpret into all five sense. Appendix A outlines each cranial nerve, it’s sensory and/or motor function, and the foramen in the bones of the skull it passes through.
According to National Multiple Sclerosis Society, Multiple Sclerosis (MS) is an unpredictable, often disabling disease of the central nervous system (CNS) that disrupts the flow of information within the brain, and between the brain and body. The central nervous system (CNS) comprises of the brain and the spinal cord. CNS is coated and protected by myelin sheath that is made of fatty tissues (Slomski, 2005). The inflammation and damage of the myelin sheath causing it to form a scar (sclerosis). This results in a number of physical and mental symptoms, including weakness, loss of coordination, and loss of speech and vision. The way the disease affect people is always different; some people experience only a single attack and recover quickly, while others condition degenerate over time (Wexler, 2013). Hence, the diagnosis of MS is mostly done by eliminating the symptoms of other diseases. Multiple sclerosis (MS) affects both men and women, but generally, it is more common in women more than men. The disease is most usually diagnosed between ages 20 and 40, however, it can occur at any age. Someone with a family history of the disease is more likely to suffer from it. Although MS is not
According to Baily and Hall, while visual impairment early in life is associated with inherited congenital disorders, abnormal fetal devepment, and problems associated with premature birth, most eye conditions are associated with aging. They claim that over 70% of the visually impaired population in the United States is over 65. Age related maculopathy, also called macular degeneration, or AMD, impairs the center of vision in older individuals. The macula is the region in the back of the retina that surrounds and includes the fovea (Goldstein 1999). It is important to understand that when this degeneration progresses enough, the condition constitutes blindness because the foveal area is what is used to focus on something. Most cases do not progress this far, but between five and 20% do. Allikments and Shroyer claim that 11 million people in the United States alone suffer some degree of this impairment, with 75% of those individuals being 75 or older. Seven percent of this older age group reportedly suffer advanced forms. Freidman reports the disease as most common in developed countries.
Primarily, the term MS refers to a chronic disorder that attacks the central nervous system (CNS). It is most common in temperate continents such as Europe and Australia with Asiatic and African continents having a lower risk of the disease (Wiley Online Library, 2013). A search organised by the Multiple Sclerosis Society (2013) has estimated that there are 127,000 people living with MS in the United Kingdom. Further research by Chipps, Clanin, and Campbell (1992, pp. 158-167) shows that MS disorder more likely affects women than men with its symptoms occurring between the ages of 20 and 40 in most cases and is quite uncommon in childhood and old age. The nerve cells known as neurons in the brain constantly transmit and receive signals. They invoke emotions, activities and cognition that constitute the day to day experiences of humans. Under normal circumstances, these signals travel on a protected insulation path known as the myelin sheath. This insulation is vital as it enables signals to reach their target. In Multiple Sclerosis, the myelin sheath gets disintegrated causing the nerve fibre to be damaged leading to a disruption in the abili...
Patients are presented with Multiple Sclerosis in various different forms and experience symptoms to different degrees – mild, moderate or severe. While some patients’ predominately experience emotional or cognitive dysfunction, others may be presented with loss of muscle control, and/or visual, balance and sensation symptoms. Other symptoms include fatigue, bladder and bowel problems.
Zoltan, B. Vision, Perception, & Cognition: A Manuel for the Evaluation and Treatment of the Neurologically Impaired Adult. Slack Incorporated: New Jersey, 1996. 109-111.
My father made a successful recovery and I became inspired. I realized that having the gift of sight is something people take for granted. Therefore, when I embarked on my undergraduate journey, I partook in several activities to help foster my thirst for knowledge about optometry. For instance, I became the treasurer of the pre-optometry club at the University of Florida. As an executive board member, I opened doors for others to find their passion for optometry through managing our budget and finances to sponsor trips and activities. Meanwhile, I also worked as a secretary and shadowed at the Eye Associates of Orlando, where I gained practical knowledge. I also volunteered for the KidSight Vision Screening Program where I entered data of visio...
The eye is an extremely diverse organ, ranging in complexity across and within animal phyla. Here, a comparative approach is taken to outlining the diversity of the eye forms within vertebrates and invertebrates. The eye morphology of a variety of organisms was examined. Eye function, and placement on the body was also considered. Here, variation in eye form is discussed in relation to the environment the organism is adapted to. It is shown that an organisms eye morphology functions optimally for the ecological niche it occupies. Evolutionary analysis is used to account for the emergence of the different eyes. Convergent evolution is used to justify the similarities in eye types seen in organisms of different species. This analysis begins with the simplest of eye forms composes of single cells, present in the zooplankton larvae. Such primitive forms are identified in mollucs, annelids, cnidarians, and are then compared to more advanced eye forms contain lenses. This comparative approach provides a breadth of examples of vertebrates and invertebrates, making visible, the diversity of eye morphology within the animal kingdom.
Robert, a 65 year-old male, has trouble reading fine detail, especially out of his central vision. He complains that his vision is blurred and that it is harder to see while operating a motor vehicle. In addition, sometimes objects appear wavy or crooked, which impairs his vision. His worst symptoms were that he occasionally lost the ability to distinguish between the features of familiar faces and he had a localized blind spot. Robert is not alone; many people suffer from symptoms related to loss and distortion of the visual field. He suffers from macular degeneration, the leading cause of decreased vision loss in the United States, especially for people over the age of 50 (Philippi, 2000).