Retina

    Page 1 of 33 - About 323 Essays
  • Functions Of The Human Eye

    revolutionary piece of technology that can make people who have lost their eyesight see again. First, “a tiny retinal implant is put into the human eye, and then later, a gadget is put onto the human body. With the small retinal implant, it receives radio messages and transfers these messages to the brain through the optic nerve. The device acts as a stimulator, in which it is set up at any position in the visual pathway to electrically stimulate neurons and retinal cells” (Ranjakumar, Rahana, and Lalith, 2016). Basically the device must be on, and worn at all times in order to stimulate those retinal cells and neurons in able to produce the visual sights these people are looking at. In our history, there have been a few types of artificial retina device that have been developed and tested in…

    Words: 1381 - Pages: 6
  • Visual Acuity

    Change in Visual Acuity with Eccentricity Humans have a large vison field so it is important to not only test the central vison but also at the peripherals of the retina. This is because individuals tend to not notice vison loss at the peripherals compared to central vision as when an individual views an object they move their eyes and fixate on that object by using their central vison and not their peripheral. Visual acuity is highest at the fovea and lowest at the peripheral which ensures high…

    Words: 975 - Pages: 4
  • Example Of Perception Research Paper

    The other day, I was thinking about how amazing it is to be able to perceive the world around me. I understood that from the retina to the brain, perception goes from complex to extremely complex. In other words, being able to experience the real world is one of the marvelous opportunities that we have. This phenomenon starts with light getting in contact with the cornea continuing to the back of the eyes, to the retina, before light goes to the optic nerve and end up in the brain. This process…

    Words: 1015 - Pages: 4
  • Plaquenil Research Paper

    The medication Plaquenil has been prescribed for the treatment of various illnesses that include malaria, rheumatoid arthritis, and systemic lupus. The purpose of this paper is to draw attention to the side effects that can damage the visual system. Even though the side effects cover a broad range, the results on the illness that Plaquenil is prescribed for outweigh the side effects. The side effects will impact individuals in different ways, depending on the dosage and the length of time that…

    Words: 701 - Pages: 3
  • Essay On Stickler Syndrome

    (1p33), and possibly COL9A3 on the long (q) arm of chromosome 20 (20q13).”. Diseases come with their own hand full of symptoms, and Stickler Syndrome is no exception. Each one of the symptoms affects an individual differently, with the severity ranging from mild to severe. The first common symptom of Stickler Syndrome has to do with the eyes. Vision problems are notable because the person who is diagnosed with this disease usually forms a thick, jelly-textured fluid around their eyes. This…

    Words: 848 - Pages: 4
  • Sensory Impairment In Older Adults

    Diabetic retinopathy is caused by damage of the red blood vessels in the eye, causing leakage and overgrowth. According to AJN, this leads to scarred tissue in the eyes. The range of age for diabetic retinopathy is twenty to seventy-four years old. Retinopathy is one of the most frequent newer causes of blindness(AJN). Retinopathy is much similar to macular degeneration. In diabetic retinopathy there is also a sub retinal hemorrhage. However, there are abnormal vessels on the surface of the…

    Words: 1092 - Pages: 5
  • Structure Of Eye Essay

    clear membrane that covers the front of the entire eye. The cornea plays a major role of keeping objects in focus for the eye to take in. The second structure is known as the lens which is a transparent membrane that is Simi-flexible which focuses the image onto the retinal layer. Both of these structures play a role on bending light that falls on the surface of the eye to focus it to the back of the eye. There is a structure at the back of the eye that portrays as they film of the camera known…

    Words: 565 - Pages: 3
  • How The Eye Works

    In the daily lives of humans we often take our ability to see for granted. We rarely think about what process our eyes and brain must complete in order to view something as simple as a movie or lecture slide. In fact, such a small part of our anatomy is made of greatly complex procedures The operation system of the eye is very complex and one can easily stray from track when discussing how the eye works. First, the cornea is a part of the physical eye that helps reflect and bend light in a way…

    Words: 1794 - Pages: 8
  • Our Five Senses

    Starting at birth, we discover the world through our senses. As infants we begin to learn to identify our mother through her smell and the sound of her voice. During our growth, our five senses continue to play a major role in our development. What we hear, smell, see, touch, and taste help us form schemas and assimilate new information. What organs are responsible for this? How do they work? Our eyes are made up of eleven essential parts which work to together and allow us to see the world.…

    Words: 869 - Pages: 4
  • Hyaloid Canal Research Paper

    nerve connects the eye to the brain, carrying electrical signals formed by the retina to be interpreted as images (Medicine Net). Central retinal vein: The central retinal vein is where blood circulating in the eye is returned to the heart to be cleaned. It forms the arterioles, branches of an…

    Words: 956 - Pages: 4
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