Retina

it, we check both ways before crossing the street, we admire the sunset early in the morning, or we read a book. But, we never think about how we see things, how does what we see get translated into things that we can understand? It starts in the retina, where the receptor cells are. There are two types of receptor cells, rods and cones, both are only sensitive to visible light. Rods are chiefly responsible for night vision and respond to only varying intensities of light and dark. Cones allow…

Evan Thompson, professor of philosophy at the University of British Columbia, presented the idea of that the self is process, not a thing nor an entity, which implied that self is an experiential process that is subject to the constant change in Waking, Dreaming, Being (Thompson XXXI). And additionally, Thompson gives the idea of the self, however, he also mentioned the three things men or human need to understand. The three things are the nature of consciousness, the contents of consciousness…

Test–Retest Variability of Fundus-Tracked Perimetry in Open Angle Glaucoma Introduction: The large degree of test–retest variability with static automated perimetry (SAP) has been recognized to disease-related changes in the response characteristics of the retinal ganglion cells (RGCs). While an earlier study suggested that fixation errors had a minimal influence on the degree of variability and other studies have suggested that the interaction between fixation shifts and the spatial variation…

As I woke up this morning feeling a bit abashed, but also very satisfied. 2 days ago I was on the brink of getting killed by Herod Sayle, but everything reciprocated suddenly when Yassen Gregorovich shot Sayle right in front of me, then told me that he wasn’t open to kill children; and that he had no enlightenment to kill me. MI6 told me that if he saw me poking around, he would shoot me right on the spot without procrastination, I guess Mr.Blunt and his affiliates were wrong about Yassen…

Retinitis Pigmentosa is kind of a human genetic disorder, but it is very rare. In about 4,000 people, there will be 1 person will have this disease. Because Retinitis Pigmentosa is a very long word, so people usually call it by its abbreviation ‘RP’. Even though RP is a rare disease, it is very harmful. It can lead a person to blindness. By studying Retinitis Pigmentosa for 20 years, Eric A. Pierce, a ophthalmologist, found out that what part of the chromosome goes wrong will cause the RP…

“ For a better comprehension of Glaucoma For nearly century glaucoma has been considered as one of the most common eye pathologies around the world but also one of the leading causes of blindness .In fact Glaucoma specifically in the united states according to the national institute affects more than three million people.before going further in facts a deeper look about such disease is necessary,an analysis of his origin, the causes and the solutions to the problem are indispensable and…

Glaucoma is an ocular disease which destroys the optic nerves in the eye due to an increase in the intraocular pressure. This disease is the second most common cause of blindness in the world and Canada (Noertjojo et al. 2006), and the most prevalent form of the disease is Primary Open Angle Glaucoma (POAG). It is estimated that by 2020, there will be almost 80 million people in the world with both primary open angle glaucoma (POAG) and angle closure glaucoma (ACG) with POAG more prevalent.…

Introduction Eye enucleation is surgery to permanently remove the eyeball (globe). The space that remains (socket) after the eyeball is removed will be filled with an artificial eyeball (implant). Muscle tissue will be sewn onto the implant to keep the implant in place and to give it some movement. The natural eyeball may need to be removed because of: Injury. Diabetes. Tumors. Eye disease such as glaucoma. Inflammation or infection of the inner eye (endophthalmitis). A painful, blind eye.…

A single pale ear curved away from its companion, my eyes trailed its lead. A small smile crept onto my features, and my anxiety settled somewhat. The stallion that approached is one I know. It's a faded memory, a wisp of my childhood where he was present. A dainty, gangly creature that I had used as a lab rat. But he is dainty and gangly no longer. As he neared me, his crimson colored eyes swept my flank, a twinge of anxiety pouring back into my senses. He looked at me differently than he did…

Diabetic retinopathy (DR), which affects approximately one-third of the 29 million Americans with diabetes mellitus (DM), is the leading cause of new cases of blindness in US working-age adults. Our lab has previously shown a link between specific European mitochondrial haplogroups and DR severity, but not the presence of DR. A follow-up study by the lab showed that higher glycosylated hemoglobin is a proliferative diabetic retinopathy (PDR) risk factor only in DR patients from mitochondrial…