Retina

Ocular Ischemic Syndrome (OIS) is a rare, primarily unilateral condition caused by hypoperfusion secondary to ophthalmic and carotid artery blockages.1 An internal carotid artery (ICA) stenosis happens 90% of the time causing perfusion pressure to decrease in the central retinal artery.1 In patients with an ICA stenosis, studies have shown that plasma levels of homocysteine and C-reactive protein are linked to the development of OIS.3 When ICA stenosis occurs, there is an incomplete blood…

Referred to as “a forgotten disease of a forgotten people” by Paul Emerson, Director of the Trachoma Control Program at the Carter Center in Atlanta, Georgia; trachoma is a hyperendemic of preventable blindness in the world. Trachoma is an ocular infection caused by intercellular parasite Chlamydia trachomatis. It thrives in dirty atmospheres with close proximities since the disease is spread by contact of infected eye and nose discharge through hands, towels and flies. Most of the risk…

The iris consists of small connective tissue surrounded by muscular structure with a central opening known as the pupil (Sturm, 2008). This pupil allows the eye to control the amount of light, which enters to allow they eye to focus the lens to the retina. This sequence allows for a sense of vision (Sturm, 2008). The pupil contracts as conditions lighten and dilate as conditions darken. These factors influence the perception of color as well as the iris pigmentation (Larsson, 2008). The iris…

Frank Louis Allen is from Bedfordshire, England and is also autistic but discovered his talent after suffering from a back injury. When Frank Louis Allen draws, he plays music or the television to distract his brain enough to let his subconscious do the work, therefore giving his hands the freedom to flow with all of the ideas that are in his head. Allen used marker in his Live I and Live II drawings, located in the basement of the Academic Center, but mainly used black throughout both drawings.…

The human brain can be modelled as a matrix of dots. Each dot's color can be flipped to opposite colors. When a baby is born, it's brain matrix consists of a very low m x n dots. As the baby grew, the number of m and n changes (usually both increases in magnitude). The magnitude of m and n are not necessarily the same, as both number defines the capacity of an individual's brain. The larger the product of m and n, the bigger the capacity to think. Capacity of the human brain can be narrowed…

Cortical blindness is one of the rare neurological condition characterized by binocular vision loss due to insult in the occipital cortex. Pupillary light reflex are preserved as anterior visual pathway is intact. One of the rare complication of cortical blindness is Anton Babinski Syndrome. This syndrome results from damage to visual association cortex (brodmann area 18, 19) along with primary visual cortex (brodmann area 17) [1, 2]. Discussion Anton Babinski syndrome is a condition in…

When I was six years old, I was diagnosed with severe amblyopia due to the drastic eyesight difference between my right-nearsighted and left-farsighted eye since birth. The doctor explained to my parents that my brain systematically ignored all images from the right eye which led to the corresponding brain area underdeveloped. His prognosis had a slight chance of visual restoration if I were to exercise my right eye persistently and adamantly to retain brain-eye connection. Not only that,…

In Home Senior Care and Macular Degeneration As we age, our eyes slowly deteriorate. The process is different for each person, but the result is tens of millions of seniors with vision-related problems. The most common of these problems in seniors is macular degeneration. Macular degeneration is a disease that affects the center of the eye. The disease makes it hard to read, drive, or even watch television since the central part of the vision is gone (the peripheral vision is still intact).…

Uveitis is a rare disease that affects one or both of the eyes. In about half of the cases, the cause of uveitis is unknown. However, in the cases were a cause has been discovered, it has been things such as and injury or surgery of the eye, and autoimmune disorder such as Ankylosing Spondylitis (a type of arthritis), an inflammatory disorder such as Crohn’s disease (inflammation of bowels and digestive tract), an infection such as Lyme disease or West Nile virus, or a cancer that affects the…

Prosopagnosia, also known as face blindness affects 2% of the world’s population, which means 150 million people suffer with this on a daily basis. This disorder inhibits people from recognizing the faces of those around them including family members. Prosopagnosia wasn’t really discovered or heavily studied until 1947, by Joachim Bodamer. There are two main types of prosopagnosia, acquired and developmental. Though often not heard of prosopagnosia has been the struggle of protagonists in…