PPT-THE RETINA

DrBakhtiar Qadr Jaf بسم الله الرحمن الرحيم OBJECTIVES 1SHORTLY DISCUSS THE ANATOMY amp PHYSIOLOGY OF THE RETINA SHORTLY DISCUSS COMMON VISION THREATENING RETINAL DISEASES. 2. 3. 4. 5. 6. Neurons as Filters. 7. 8. 9. 10. Local Circuits in V1:. Selectivity is generated by specific connections. stimulus. Orientation selective. cortical simple cell. LGN. V1. Retina. 11. 12. G. Wollstein, MD. Associate Professor. The eye. Diameter: . 24mm. Anterior chamber: 3mm deep, volume of . 250μL. Posterior chamber: . 60μL. Vitreous: 6.5mL. Diameter: . 24mm. Anterior . chamber: 3mm deep, volume of . Prematurity. Kathy . Seabridge. , Angela Cook, Sara Escoe. Stages of Retinopathy of Prematurity. Retinopathy of Prematurity. Normal Eye. What they see…. Stage 4 Retinopathy of Prematurity. Once the retina has partially detached, a shadow or curtain will come from the top or side of the eye until all vision is lost. During stage 5, the retina will completely detach and complete vision loss can be gradual or instantaneous.. Ghanbari. MD. 1391:12:10. LCA. Infant with normal fundus and low vision. LCA. Stationary night blindness. Achromatopsia. . Immue. retinopathy. Development of the Retina . T. he retina develops over a relatively long period of time beginning from the . Retina. Retina. The innermost layer of the eyeball.. It is extremely thin and transparent (0.5mm). It contains visual receptors of the eye. The retinal neurons transmit the picture through the optic nerve fibers to brain for perception. CATARACT. Lens . of eye . becomes cloudy. Frequently . occurs in people over . 70. P. ainful. , gradual blurring . of vision. Pupil . turns . milky white. Rx . – surgical removal of . the . lens. COLOR BLINDNESS. Denis Jusufbegovic, M.D.. University of Louisville. Department of Ophthalmology and Visual Sciences . 2/11/16. Case Presentation . CC: “ L. eft eye turning in x few weeks”. HPI. : . 5 . yo. . Iris. Pupil. Cornea. Lens. Optic nerve. Retina. YouTube: Anatomy and function of the eye. YouTube: Bill Nye – The Eyeball. Videos to watch. Seeing. F. ’. F. object. image. Retina. d. o. d. i. f. Focusing on objects. Sensors and Transducers . Robert Jubie. April 14. th. , 2017. Covered in this Presentation:. Anatomy of the Eye. Pathologies of the Eye. How Implants Simulate Vision. Types and locations of Implants. When a person has lost their sight to a damaged retina there is now technology that allows them to see again. By means of a chip which sends electrical signals to the optic nerve. They then have their sight partially restored.. Monday, April 18. Mike Vue. Artificial Retina allows someone who has lost their vision to see again. The technology is implanted in the eye and it sends signals to allow the person to see.. Table of contents. La gamme de thé MORPHEE vise toute générations recherchant le sommeil paisible tant désiré et non procuré par tout types de médicaments. Essentiellement composé de feuille de morphine, ce thé vous assurera d’un rétablissement digne d’un voyage sur . Dr. . Vincent Yau-Wing Lee. Asia-Pacific . Vitreo. -retina Society. Types of Retinal . detachment. 1. . Rhegmatogenous. . (RRD). . accumulation of . subretinal. fluid via a retinal break. Types of Retinal detachment. First neuron. Rods- vision in light of low intensity. Cones- visual acuity and color vision. Second neuron. Bipolar- second neurons of visual pathway. Ganglion. Ganglion- third neurons of visual pathway.