Retina

Is Retinitis Pigemntosa treatable? Retinitis Pigmentosa (RP) is a disease that affects the back of the eyes, it usually occurs and starts in children aged as young as 5 have shown symptoms of RP. It starts out only affecting a slight proportion of the eye usually everything is consumed the disease apart from the centre of the eye there is no current treatment for this disease so therefore RP is a disease which tends to lead to complete blindness in young adults. Symptoms of RP tend to be…

provide OCT-A images. Additionally, OCT-A allows the analysis of the superficial capillary plexus (SCP) and deep capillary plexus (DPC) which can be examined in isolation contrary to FA, that is not able to visualize all relevant vessel layer in the retina. Ref spaide cystoid macula edema. A new software update released by AngioVue system allows quantification of the percentage of the area occupied by vessel lumens, around the macula in all retinal plexuses, defined as Vascular Density (VD).…

percent are dry AMD for which no effective treatment exists [1]. The retina is the nerve tissue lining the inside of the eye which begins the conversion of light into vision. The macula, located in the center posterior to the retina, is a small area approximately 5.5 mm in diameter which is responsible for central vision used for tasks such as reading, facial recognition, driving, etc. Densely packed into the retina are photoreceptor cells, notably rods and cones, which react to…

The light rays that fall on the retina converts the light rays into the electronic pulse. This electronic pulse travel to the brain through the optic nerve inorder to create a visual image. The working of the eye is same as that of the camera lens. Light enters the clear covering of the eye like the glass of a camera lens and the pupil controls the amount of light that travels through the eye like a camera aperture. The incoming light is captured by the retina and the record is sent to the…

Progressive Retinal Atrophy (PRA) is a common term used for a group of inherited retinal disease. It degenerate the retina of the eye over time, eventually leading to blindness. This condition affects both eyes, and is not painful for the dog. In typical PRA rod photoreceptor responses are lost first followed by cone photoreceptor responses. It is seen in many breeds of dogs and very rarely in cats. It is similar to retinitis pigmentosa (RP) in human. RP is transmitted in different…

When looking at a sunset, we do not see it as a detailed, quantifiable object but rather as a being or a face that evokes various inexplicable emotions within us with its constantly changing and fluid expressions. It is difficult to understand how the varying hues of colour and light, the radiance of the sky and its transition into velvety darkness which softens the surrounding landscape, can induce such a surging up of emotion and how it has the power to alter our mood. Although every sunset is…

frequent blood transfusions to combat her severe case of iron deficiency. 2. Glaucoma: Characterized by increased intraocular pressure and vision loss over time. As pressure from fluids inside the eye and against the retina increase, blood flow through the main retina…

Was It Worth It Mac? Apple products are known the world around, but do they really deserve the popularity and recognition they receive? Apple was founded by Steve Jobs and Steve Wozniak in 1977 and went public in 1980 (Finkle, and Mallin). Soon after opening the company released some wonderful new products. In 1977 the Apple II was introduced and was the first of the PCs, in 1991 they set the standard for laptops and in 2007 they released the world changing iPhone (Cusumano). Being a front…

(peripheral) vision, so it rarely causes total blindness. Dry macular degeneration is one of two types of age-related macular degeneration. It can progress to wet (neovascular) macular degeneration, which is characterized by blood vessels that grow under the retina and leak. The dry type is more common, but it usually progresses slowly (over years). The wet type is more likely to cause a relatively sudden change in vision resulting in serious vision loss. When to see a doctor See your eye doctor…

camera to capture image data that is processed by a portable computer and converted into electrical patterns (Lorach et al. 2014). These signals are wirelessly sent to an array composed of sixty microelectrodes placed in the macular region of the retina via an external coil located on the side arm of the glasses. A coil in the implant receives radiofrequency waves from the external coil and converts them back into electrical signals. After these signals – which essentially are data and power –…