PDF-RETINA TODAY

OCTOBER 2014 61 S clerochoroidal calcification is an uncommon ophthalmic condi tion characterized by yellow white subretinal lesions classically located in the superotemporal midpe ripheral reg. Jean Escalante. Kristin . Filkins. Erika Garcia.  . SPE-516 Structure . and Function of the Visual System. What is Retinopathy of Prematurity?. When an infant is born early or not completely developed their eyes may be lacking in development as well. . 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. Temporal filtering . – visual response slower than input signal. . 2. Spatial filtering . – local signals are combined across space to varying degrees.. . . 3. Light adaptation . – retina modifies responsiveness depending on average light level.. 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.. Janelle . Fassbender. , MD, PhD. University of Louisville. Department of Ophthalmology and Visual Sciences. 01/23/2014. Subjective. CC/HPI. : 52 . year old . HF c/o the right half of faces looking abnormal.. 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 . Mrs. . Amany. Ahmed . Niazy. Opto. 435. Lecture . . 2. . Eyeball. The eyeball lies in a pyramid-shaped bony cavity called . orbit. . . Each eyeball is suspended by extra ocular muscles. . A pad of fat lies behind the eyeball to provide a protective cushion. . 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. DIFFERENT INVESTIGATION IN SPECIALTY CLINIC. DIFFERENT INVESTIGATION IN SPECIALTY CLINIC. Refraction . Auto Refractor Machine -Rate -2, 00,000. Topcon uses . : Check correct power, Correct Axis, Auto K –reading, Correct IPD. 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. 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. Retina SpecialistsThe Foundation continued next pageCommitted to improving the quality of life of all people with retinal disease. RETINA HEALTH SERIES WHAT IS THE RETINA? Symptoms and Causes: edema r buildup of lipofuscin in the RPE causing absorption ofshort-wavelength light.Fundus autofluorescence (FAF) allows qualitativeassessment of the buildup and distribution of lipofuscinin ABCA4 disease an 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.